Even thinking of recasting the original 6 is ridiculous. That actor/actresses will be judged for eternity. Who can play Iron Man better than RDJ without being judged every scene. How about Chris Evans as Cap? No, the answer isn't recasting, the answer is better writing, better characters, ending the Multiverse and ending trying to force beliefs by making characters no one cares about to make people happy. The real answer, get villians people can hate: Dr Doom. Characters people can follow: a GOOD Ghost Rider, The Nightstalkers, GOOD Fantastic Four, X-Men. If going to "recast", make them from the Multiverse so not the originials but another Universes hero's.