I've compiled a list of shows this season which are of at least some interest to me. Split them into categories, linked trailers for each show, along with a short comment. Maybe it'll be helpful for those looking for something to watch!
Kids
Tribe Cool Crew - Trendy dance anime with kids. Stylish designs. Might appeal to those who are looking for dance/music shows without all girl casts and idols.
Mysterious Joker - Heist gag action comedy for kids. Has 2D animated car chases. Looks fun.
Gundam Build Fighters Try - If you didn't watch the first season and aren't looking forward to this new season you're a criminal.
Ronia the Robber's Daughter - Goro Miyazaki's TV anime adaptation of the beloved classic. Ghibli is helping with design production, but the show is a full CG anime by Polygon Pictures.
2Dark2Edgy
Fate/Stay Night: Unlimited Blade Works - Ufotable, huge production values, will likely have amazing animation and music, too bad it's still F/SN.
Rage of Bahamut Genesis - Huge blockbuster dark fantasy series funded by f2p mobile success, from the director of Tiger & Bunny. Looks great.
Garo -Hono no Kokuin- - Anime spin-off of the dark fantasy tokusatsu series. Features shiny CG armored hero knights fighting demons.
Psycho-Pass 2 - Tune in to find out if after another year and a half on the job, Akane still needs someone to explain everything to her.
Action
Parasyte - The Maxim - Adaptation of a well regarded horror action manga about alien parasites invading Earth. If Madhouse can do as good a job as they did with Hunter x Hunter, this should be great. It's airing on NTV late at night, so there should be no censorship concerns either.
The Seven Deadly Sins - The director of Blue Exorcist returns with another shounen action adaptation. I can already hear Cosmicblizzard's pants tearing apart.
Chaika the Coffin Princess: Avenging Battle - Chaika, good. Watch more, please. BONES, love very much!
Drama/Comedy/Romance
Amagi Brilliant Park - Kyoto Animation adaptation from the Hyouka team. Will probably not be anything like Hyouka. But it does have Bonta-kun as a mascot character. Because you know, FMP fans haven't suffered enough.
Shirobako - The director of Joshiraku and Girls und Panzer is making a show about girls working in the anime industry making anime. How could anyone not watch this?!
Shigatsu wa Kimi no Uso - New noitaminA show which actually looks like a noitaminA show. Romance, coming of age, music passion. Hope it's good.
Inou Battle Within Everyday Life - Trigger will probably not save anime with this light novel adaptation about students who have special powers but form a club to hang out since they can't do anything with them.
True Art (TM)
Gundam Reconguista in G - See the OP.
Mushishi: The Next Chapter (Second Half) - It's Mushishi.