Suki-tte Ii na yo omg omg almost had a panic attack when I saw this! Manga is great and I can't believe they're coming out with an anime version *squeals*
Shin Sekai Yori seems interesting enough and has a decent plotline. I'll give it a try.
Hiiro no Kakera 2nd Seaon I'll watch this is if I ever decide to finish the first season
Tonari no Kaibatsu-kun Looks like a cute and innocent anime about kids, I'll see how it goes.
Zetsuen no Tempest Plot looks interesting

Meh I'll probably end up giving all the ones Crunchyroll simulcasts a try. Definitely looking forward to Suki-tte Ii na yo :3 haven't seen a good shoujo anime in years since Kimi ni Todoke

Initial D Fifth Stage will release two episodes a month starting November 9th.

http://www.animenewsnetwork.com/news/2012-08-07/new-initial-d-anime-to-run-2-episodes-every-month

Animuchart version 1 is also out now:
http://i.minus.com/i9VnqrnACrdCE.jpg

Looks more interesting than the summer season.


Excited for
Code Breaker
Robotics;Notes
Suki-tte Ii na yo

Will watch
Madoka movies
CG: Gaiden
A bunch of OVAs
Shin Sekai Yori

Might watch
Bakuman 3 (I'm reading the manga currently, we'll see if I finish the first and second season by the time this airs)
K (this looks amazing, but we know nothing about the actual plot. And Guilty Crown looked the same way, and see how that turned out)
Chuunibyou (Could be good, but....)
JoJo (I've heard good things about it, but I'm going to read the manga first and then decide)
Psycho-pass (I like it already from the title only, but, again, no info)
Jorgamund (If I get to watching the first season. It does look really good, though)
Hidamari Sketch

Not as many titles that look that interesting to me as these last two seasons but I'll give a few of them a watch. I'm usually pleasantly surprised later on by some of the ones that I do end up checking out that turn out to be good. To Love-Ru Darkness I've been looking forward to and Robotics;Notes and K. Onii-chan Dakedo Ai Sareba Kankei Nai Yo Ne looks like another fun show since Oreimo and Nakaimo are enjoyable.

But I'm really looking forward to Mass Effect: Paragon lost and Nogizaka Haruka Finale.

Updates to initial post:

Updated link for Animucharts Autumn 2012 chart to display version 1.0 chart.
Updated data for both charts to shows publication date.
Added information on Initial D Fifth Stage, Kamisama Hajimemashita (Kamisama Kiss), and Litchi Hikari Club (Lychee Light Club).
Added network information for Chuunibyou demo Koi ga Shitai!, Onii-chan Dakedo Ai Sae Areba Kankei Nai yo ne—, and To Love-Ru: Trouble - Darkness.
Added episode count for Bakuman 3.

Time to put in my two cents what CR is going to simulcast
- Robotics notes - Noitamina timeslot plus its an aniplex show
- Hidamari sketch - share with sentai
- Seitokai 2 - CR streamed the earlier season so unless funi gets this then CR will likely stream it
- Little busters - sentai will likely get this so i can see them sharing it with CR
- tonari to kaibutsu kun and kamisama kiss - tonari is airing on utakois timeslot and kami sama is airing right after it both on TV tokyo
- hiro no kakera 2 - Well duh
- Hayate 3 - This has a decent chance if its airing on TV tokyo
- oniai - aniplex title could go to funi
- gyrozetter - TV tokyo series
- To love ru darkness - Same thing as hidamari sketch
- MB 2 - duh
- Psycho pass - Noitamina anime

Funi:
- Oniai - seems like the type of series they would get
- Initial D fifth stage has a very slim chance of being simulcasted at all but if it is then funi would be the ones doing it
- jourmungand 2 - already confirmed
- Zetsuen no tempest - Its taking E7 AOs timeslot

Viz
- Jojo - WB is producing it so viz has a decent chance of a simulcast
- LB - While sentai will probably get this theres a chance viz could since its a WB series
- Magi - Shokakugans 90th anniversary title so i imagine viz will be getting it

Who knows:
- Code breaker - Supposedly its taking kurokos timeslot so CR might get it but being a kodansha action anime funi might try to get it
- Please kiss me (sukitte no yo) - Anyones guess
- Busou senki - MBS/TBS anime
- Shin sekai - No clue but either CR or funi will try to get this probably

Incase anyones curious here are all the aniplex titles in the fall
Magi is the big aniplex show of the season
Robotics notes
tonari to kaibutsu kun
oniai
zetsuen no tempest
gyrozetter and shin sekai might be aniplex titles since A-1 is animating them but im not sure.

Simulcasts:
- Don't forget that WB has also been involved with Ro-Kyu-Bu, Kamisama no Memochou, Campione and Arcana Famiglia.
- Shin Sekai is TV Asahi, so most likely CR (unless Funi tries to get it first).
- Simulcasts of MBS's Thursday night series depend more on production company than timeslot, so Zetsuen no tempest taking E7AO's timeslot doesn't really matter. Note that the Saturday night timeslot that Kuroko holds is treated differently, so there may be a trend there.
- I'm not so sure with Seitokai no Ichizon 2. If the reason that Ebiten didn't get a simulcast was because Kadokawa didn't want HQ raws on the net before the TV airing (the following season), then this won't get one either. Of course this is only speculation and there may have been other reasons why Ebiten wasn't simulcast.

Aniplex:
- As you say, Magi is one of the big Aniplex shows this season, which most likely means Aniplex USA + CR Simulcast.
- I don't think Oniai is Aniplex. At least I haven't seen anything that says it is, and there's no watermark on the trailer.

Edit: Oreimo 2 is now confirmed for Winter, not Fall.

Must:
- Robotics; Notes
- Jormungand Season 2
- Shin Sekai Yori... Hints of Fractale, but hopefully executed better
- Kyousougiga... This is probably only episode 2 and not a series.

Probably:
- Magi... I like the idea of an adaptation of 1001 Nights. I wonder if they'll stick with core concept of Scheherazade telling stories to save her life.
- Zetsuen no Tempest... sounds promising
- Chuunibiyou demo koi ga shitai... interesting, plus based on LN

Maybe:
- Busou Shinki... Didn't episode 1 come out about 6 months or so ago?
- Tonari no Kaibutsu-kun
- Suki-tte ii na yo
- Code: Breaker... the manga is pretty popular
- Girls und Panzer... sounds like the new Upotte. I don't hold out much hope for this.
- Little Busters

Definitely Not:
- Anything based on a card game.

Not sure if this should be considered an OVA or something else since Ippatsu Hicchuu Devander goes on TV in September:
http://www.animenewsnetwork.com/news/2012-08-08/tatsunoko-devander-anime-new-promo-streamed

Another title to add for the Fall Season:

Teekyū! Manga About Girls' Tennis Team Gets TV Anime




http://www.animenewsnetwork.com/news/2012-08-09/teekyu-manga-about-girls-tennis-team-gets-tv-anime

We also now have an official confirmation of BTOOOM! for October:
http://www.crunchyroll.com/anime-news/2012/08/09-1/btooom-character-designer-and-broadcast-networks-revealed

Actually, no.
That was Moon Angel, an mini-OVA series. This is an actual anime series.
Still wonder how they're going to pull it off.

As for my personal choices;

HOLY CRAP! ASDBBQ (Must Watch)
Gothicmade- Hana no Utame
(Evangelion 3...[Maybe! If I have a trip to see my friend when it comes out!]

Going To Watch
Robotics; Notes
Busou Shinki
Chou Soku Henkei Gyrozetter (Still getting Brave vibes from it.)
To Love-Ru Darkness (DUH.)
JoJo's Bizzare Adventure The Animation (Once again, DUH.)
Accel World OVA (Assuming I get the Ps3 game.)
Little Busters! (Assuming I can finish my copy of Converted)

Might Watch
Jormungand 2
Code: Breaker
Bakuman 3
Girls und Panzer

No Interest In
Everything Else

Seitokai No Ichon or w/e is AMAZING people, how can you not look forward to it? It's the best comedy that's come out of anime in years. Plus it has an amazing and somewhat touching romantic aspect to it. None of the others do I look forward to quiet like that one.

Ill definitely watch Seitokai, Hayate, and Robotics, and the Inu x boku ova and Haganai's ova, the others maybe I will maybe not. and where's Minami-ke's and The Idol M@ster's ova?

The next Minami-ke series is slated for winter 2013 (i.e., January 2013).