Board Thread:General Discussion/@comment-5037384-20161231194723/@comment-27020644-20170201173058

I think the Red Hulk could show up in Infinity War or Avengers 4. Thanos invading Earth with the Infinity Gauntlet and possibly an army of aliens would probably be a good reason for Ross to become the Red Hulk.

Plus, the Russo Brothers said in an interview that they considered putting the Red Hulk in Captain America: Civil War, however they couldn't find a good spot for his origin story that didn't mess with the rest of the story. And since the Russo Brothers are working on Infinity War and Avengers 4, they may still want to do the Red Hulk. So it could happen in either Infinity War or Avengers 4, but nothing official has been said.