Personally I'm most excited (and scared) for The Fault in Our Stars and Gone Girl. I wouldn't mind seeing Divergent and the Hunger Games (although I still have not seen the second HG movie).
This is Where I Leave You may be interesting. I enjoyed the book but not sure how it'll play out on the big screen. Same with The Giver. I probably should reread it (and the other books) before it comes out as I read that back in middle school.