Originally Posted by
Digifiend
If Green Goblin is there then that means there is classic villains... they're just using the baddies from the latest Avengers movie as the final bosses.
I wouldn't worry about costumes either, there's usually alternates. So while Falcon there has his current look, he could have MCU, Captain America, and classic alts. Wolverine could have an Old Man Logan alt, an X-Force alt, and a brown and tan uniform. Spidey could have his black suit, MCU Iron Spider, and classic suit (the primary seems to be his main MCU one from Civil War and Homecoming).