From the interviews regarding his screentime and such Renner probably said it the best himself. the movie is called Avengers, not Hawkeye, so it can't focus on him for too much longer than it could each and every other character. and the other ones are more popular than he is, while with each of them coming from movies of their own already. So they have more time on screen than he will.
I get what he's saying, because I've written stories that involved numerous characters and its like, you start to focus on the ones who play a bigger part to he story than the ones you know are just sort of there. sometimes you even just write lines for them to say to give them something to say or do just so they don't seem to be background characters.
having that said, though, Hawkeye is my personal favorite out of the whole bunch and getting Renner to play him who I've been a fan of since I was a kid (i grew up with the movie Senior Trip xD) the more of him they show, the better. I hope he has some more time with the deleted scenes Whedon spoke of recently. I know his schedule is going to be crazy because he's getting so many movies to do, but I really do hope he gets the chance to play Hawkeye again in upcoming projects. Maybe if not his own hawkeye film, he could do cameos in the others. Or possibly play a role in the proposed Black Widow movie (I think if they did that movie as a prequel, it would work out really cool.) Definitely hope to see him return for Avengers 2. Build up what he needs to earn his own titled film.
But I'm looking forward to see him in Avengers 2!
