The Los Angeles Times talked to Marvel Studios' Kevin Feige, who gave a few more details on The Hulk/Bruce Banner (Mark Ruffalo) in The Avengers. Here's an excerpt from the interview:
He'll be about the same size he was in "The Incredible Hulk" [which was about 9 feet tall] or maybe a little bit smaller. His muscles won't be quite as cut. We figure he's been the Hulk now for a few years and [his physique is changing]. He's not as cut or as ripped as he was in "The Incredible Hulk." The most important thing is that face. As you can already see in that concept painting, it is — more than any Hulk that's ever been done in live action — a Hulk that let's you see the actor in there. You will be able to see Ruffalo in there. That was a big revelation for us. It's just a concept painting, but in that you can see the [influence of Marvel Comics pioneer and original Hulk artist Jack] Kirby, as people have already pointed out, but also, and equally important in this case, Ruffalo's eyes and his cheek structure. It is him.
You can read the full interview by clicking here. Below is the Hulk art Marvel Studios released on Sunday at Comic-Con.