If TEW is playable at E3 this year I'm going to be looking at the controls first and foremost.
I want to see how the character moves, how fast, what the Hud looks like and how item management is handled. If it controls anything like RE6..I think I'm out. After I played the RE6 demo I felt the controls ruined any sense of atmosphere and struggle. But I really liked how RE5 and 4 controlled so I'm hoping for something similar to that.
I can't deal with run-and-gun controls in a survival horror, not saying I'm against moving and shooting, although I do dislike it, I'm not against it if done right. Something like what Outbreak had would be good, although I liked when you would plant yourself, and then shoot. It added a sense of strategy to how and when you stood to fight.
Personally I would like to see a mix of controls, I think one where you would have to stop to be able to shoot would be good but you could also reload on the move as opposed to having to stop to reload like in RE4-5. That's what I would like. Don't think I'm gonna see it, but that's what I would like.