In an interview with his home town newspaper, Sean Gunn talked a little bit about both Avengers 4 and Guardians of the Galaxy Vol. 3. Now, him talking about Avengers 4 isn’t proof that Kraglin is in it; as he is also the on-set Rocket. So his comments in the interview could just be referring to being on-set as Rocket for the two movies. Here’s what he had to say about Avengers 4:
“I can tell you this,” he said. “I can tell you that the movie is going to be really excellent. We shot them originally pretty much back-to-back with a short break … and I like (‘Avengers 4’) even more than ‘Infinity War,’ at least from the script and from shooting it, and I was really happy with ‘Infinity War.’ So I’m very hopeful that it’s going to be a great movie.”
Although at the end of the interview he did drop a big hint about Kraglin:
“I think I can say this: I don’t think Kraglin’s story is finished yet. I think the fans will, at least, get to know what happens with Kraglin, even though I can’t share that right now.”
And when asked about Guardians of the Galaxy Vol. 3 he said:
“I don’t really know yet what’s going on with ‘Guardians 3.’ I know that Disney still wants to make the movie. I know that they have every intention of using the script that my brother wrote. Obviously, that was a very unfortunate situation for everybody, most of all him, but I am also somebody who had been preparing to spend half a year making that movie and now that’s up in the air.
“Obviously, I think it’s a tricky proposition for them to find another director to step in — and also the scheduling of a lot of other actors who are incredibly busy can’t be easy. But I know that they plan on making the movie. I had not been contacted at all for a while, but I was recently contacted by Marvel saying, ‘Yeah, we do plan to make this movie. We’re just not sure when yet.’ ”
So Avengers 4 is even better than Infinity War, and obviously Marvel does still plan to make a third Guardians movie. All of those people claiming it was cancelled will probably have to backpedal on that at some point.