Adam Warlock

The biggest Easter-Egg of them all revealed that Adam Warlock is joining the MCU! His arrival will take place a little later than expected, since he’ll skip both Infinity War and Avengers 4. He’ll be introduced in 2020 when Guardians of the Galaxy 3 is released.

One of the GotG2 credits scenes showed Ayesha planning her revenge on the Guardians. She created a weapon more powerful and more beautiful than anything that came before, and she called it Adam. Of course, given the fact that the Sovereign were a genetically engineered people, this weapon was Adam Warlock.

So he might be one of the Guardians’ main antagonists; that is, until he joins them or goes on his own quests.

This also revealed that Ayesha and the Sovereign would return as main antagonists!