Phase Four?

Phase Four is the first phase of the Marvel Cinematic Universe that we know nothing about and, therefore, the first that we are merely going to speculate about, based on the progression seen so far.

A massive storyline and villain will have just been and gone – the Infinity War and Thanos – and, therefore, something big needs to happen in order to make this fourth phase exciting.

There will likely be a focus on getting Spider-Man to Iron Man-esque levels of popularity (as the original heroes are gradually weaned out) and making him the flagship character of the franchise, the Inhumans will become extremely prominent with more and more being added, magic users and supernatural characters will begin to appear and more and more characters from around the cosmos (Beta Ray Bill et al) will be introduced (but even with the rights to the X-Men potentially being in Marvel Studios’ grasp at this point, it’s hard to see them doing anything with them due to the emergence of the Inhumans).

Villain-wise, something amazing needs to be done to follow Thanos. We anticipate Dormammu, Kang the Conqueror or Norman Osborn (potentially triggering a Dark Reign/Siege storyline, which would be amazing).