I REALLY hope he does and that there will be a bit more screen time for Cap' because in Avengers he's not really present in the movie except for the Battle of New York .
Hmm... no, that's actually the opposite of what happened. Of all characters, Evans had the most screentime at the beginning of the movie; he had a lot of drama and story around his character, unlike the others who only had a little bit; the beginning of the story was more or less Cap-centric.
During New York, Cap was there but he didn't do nearly as much as he could have done. A lot of stuff with Cap was cut out from the battle, so we got less than what was planned. I'd have liked for him to have fought his way up Stark Tower, get into an awesome showdown with Loki, then Thor comes and helps him, but Loki escapes and so Cap is the one who tries to close the portal while Thor helps Hulk take down more of those space worms.