Avengers 4 Title Predictions: What Is Infinity War's Sequel Called?!

3. Avengers: Earth's Mightiest Heroes

If you're looking for a romantic title (and okay, it's not quite as spoilerific as some of the others here, but it's great), giving the Avengers their official subtitle in a title is a great choice.

There's also that same sense of defiance as Forever - and it's not inaccurate to call them Earth's Mightiest Heroes (Nebula and Thor aside, anyway - though they can be adopted), the only word missing is "Remaining."

The problem here is that there's an animated show of the same name, but it wouldn't be an impediment and Marvel do have a habit of appropriating familiar titles for their bigger movies to use the familiarity as a marketing tool to sell them. So it absolutely would fit.