With Thanos and the Infinity Stones linking the two teams, there will definitely be a time when the Avengers and the Guardians Of The Galaxy will meet. The guess of most fans is that this will be during one of the two Avengers: Infinity War films, due for release in 2017 and 2018, but Jeremy Renner, who of course plays Hawkeye, reckons it’ll be after that. Appearing at Wizard World Comic Con in Chicago, he said:
“There’s already a lot of people in the Avengers, you want more? Chris Pratt, I love that guy. I love what they did with Guardians actually, I thought that was one of the funniest movies I’ve seen in a long time. I think they’ll probably do another Guardians, we still have Avengers 3 and 4 to go. You’re gonna be eighty by the time that comes out, and I’m certainly not going to be Hawkeye. I’m going to be Dead”.
So he seems to think that the team-up [or not] won’t happen until after the Infinity War movies, though one has to take his words with a pinch of salt. After all, he says there will “probably” be another Guardians film when one’s already been 100% pencilled in. The plans for the Marvel Cinematic Universe do sometimes change, for example the huge success of the first Guardians and the new solo Spiderman movie being recent developments which have probably required some characters and storylines to be moved around.
Renner also said that the forthcoming Captain America: Civil War will see his character Hawkeye side with Steve Rogers instead of Tony Stark.