Off the top of my head, here's what I'm looking forward to-
PS4- I think console only players have a lot to look forward to, especially from Sony.
Battlefield 4 MP reveal. Maybe more than 24 players for next gen consoles???, total destruction- like BFC2???, dinosaurs lol????, Can't wait for BF4
GTA 5- although I don't think we'll see anything other than a trailer
The Witcher 3- cofirmed for PS4 and PC. I can't wait for Wild Hunt. I think this game is gonna revoultionize RPG's- much like KoTOR did.
Rainbow Six- I really, really hope Ubisoft doesn't Sh!t the bed and cancel it. Come on!!!!!
Metal Gear Solid 5- I fully expect gameplay on next gen consoles at E3. And also I fully expect this game to be amazing.
What I'm hoping to see, but probably won't:
Half Life 3/episode 3..... Yes, the inevitable rumor train and yet inevitable conclusion that Half Life 3 will never be made. But hey, I can hope.
Halo 5- No way. Too soon. Right?????... Right.
Uncharted 4- Would be so cool, but meh...... with Last of Us out in May I think ND is a little busy. But you never know.
That's about it.