Source: marvel.wikia.com

5. The Greek Pantheon

I mean, I guess I get why.

Like, the MCU has spent 7 years messing around with the Norse gods so it makes sense that they haven't expanded into anything else. But they have a swath  of other gods to eff around with if they so wanted. Namely, the Greek/Roman Pantheon. The big one who people have been bringing up a lot is Hercules, who would be a fun addition to the Avengers line up if Marvel wanted him.

And if they were gonna, I'll campaign hard for Dwayne Johnson to get a crack at the character. Yes, he kinda did, but it was in a bad movie no one saw. And if anything, the way he played Maui in Moana should be the selling point. A cocky demigod who gets in over his head and loves a good time? Seems to fit. But anyway, odds are we won't see Zeus, Hades, or Athena striking down on Thanos.

Also because Wonder Woman kinda has the Greek myths on lockdown.