Well, I'm pretty sure it won't be Lightning Returns, FFXIV ARR, or KH 1.5 Remix since I'm pretty sure they are a given to be at E3 this year. I doubt they would be this excited for a smaller title like Braverly Default, Drakengard 3, and some of their iOS titles since once again, I'm pretty sure they are a given to be there.

So its probably going to be a few things:

New Versus XIII trailer
Type-0 finally appears with western release date and demo
Final Fantasy XV
New FF title that isn't numbered, possibly Agni's Philosophy
Vagrant Story port/semi-remake (since they've really been giving the game a lot of love lately...)
FFVII-2 starring Genesis, since the whole compilation was pretty much building up to it.
Dragon Quest X gets western release date.
New Kingdom Hearts title, since Nomura said there is one more title between KH3D and the eventual KHIII