Thread:ADour/@comment-5448995-20160810064711/@comment-5448995-20160810184103

They haven't come out yet, they just unlocked a new zone called Gamma Zone, with Tigra, Hulk, and Winter Soldier(for those that didn't get him in Civil War event) unlockable.

Crimson Dynamo, and Mandarin come after those characters, plus the next zone is called the Makluan zone(Fin Fang Foom is sleeping there), which would tie in with Mandarin(Makluan) rings.

Basically I'm speculating because of their unlock order, and Mandarin being an Iron Man villain. Right now they are only tagged with coming soon, the cap is at level 36, and Crimson Dynamo unlocks at 38, it might take a while for them to be released though, there will be a Modok, and next an Hell Kitchen event so they will take a few months to release the new zone.

Iron Man, Loki, Wasp, and Black Widow are like the main characters of the game, they have a lot of students, but since they are the first 4 they are used a lot in events(to be new player friendly), Iron Man, and Wasp have the most alternative suits for example.

P.S. Damn that answer got long sorry.