Recent official promos and cast reveals have solidified a massive ensemble crossing the Avengers, Fantastic Four, New Avengers, and original X-Men lineups, driving strong trader consensus on core confirmed returns like Thor, Steve Rogers, Reed Richards, and Professor X. Multiverse crossover speculation from prior MCU patterns and recent team-up footage has elevated implied probabilities for legacy appearances such as Tobey Maguire’s Spider-Man and Hugh Jackman’s Wolverine above 90 percent, while unconfirmed names like Doctor Strange and the Hulk trade lower amid conflicting reports and director comments. With the December 18 release approaching, final trailers and any last-minute cameo announcements could shift momentum on swing outcomes.