This is still in the speculative stage, but Variety claims Peter Dinklage is being “eyed” for a role in Avengers: Infinity War. If he gets the role, he is expected to return for whatever they’re calling the second Infinity War movie.
This is likely to be an improvement on Dinklage’s last foray into the Marvel world in X-Men: Days of Future Past, although he did have a cool mustache in that one, so let’s not get ahead of ourselves.
It feels almost shocking that they’d have to cast anyone new in this movie considering how stacked the cast must be already. This is the big one everyone is coming back for. Even the Guardians of the Galaxy are probably showing up. On the other hand, Civil War was loaded too, and they still had a need for Martin Freeman. Well, kinda. I’m not sure he was all that necessary.
The first Avengers: Infinity War will shoot this year with an expected May 4, 2018 release date (which should make Star Wars enthusiasts a little angry).