Avengers 4 Title Predictions: What Is Infinity War's Sequel Called?!
5. Avengers: Infinity Watch
When the time comes, there will be a fairly big question of what happens to the Infinity Stones after the Infinity War is over. It's not like they can simply still go on existing as they are - because another villain will always rise to fill the vacuum left by Thanos. There must be some sort of long-term plan, and that's where Infinity Watch comes in.
Infinity Watch could be taken from the comics as the name for the group who are appointed not only to reverse the results of Thanos using the Stones (at least in the film), save the "dead" heroes and dispose of the Stones or send then somewhere they cannot be retrieved.
Nobody wants to watch a committee of superheroes sitting around deciding on the next step for the Stones, but the comic's name could be borrowed the same way Civil War was - as a reflection of similar ideas, if not the exact same plot.