Episode 7 wouldn't be the first time that Lucasfilm has dusted off an aging Star Wars actor to reprise an iconic role - when Harrison Ford returned to Indiana Jones in Kingdom of the Crystal Skull. The 2008 film came nineteen years after The Last Crusade and, despite decent reviews, was considered a disappointment for fans of the actor, character, and overarching series. While there were plenty of problems with the film, some die-hards felt as though Ford's performance was a deal breaker - asserting that the actor had resorted to riffing on Indiana Jones as a caricature instead of delivering the same captivating subtleties that made Indy such a hit in the first place. Understandably, it's a problem that could reappear if Ford is asked to step back into the boots of Han Solo - thirty full years after Return of the Jedi.
Similarly, Fisher and Hamill will have to readjust to their roles as combat-ready heroes in a blockbuster action production - casting a very bright spotlight on their respective performances. This isn't to say that they can't get in fighting shape again, nail their lines, and usher Luke and Leia into a new big screen chapter - but what if even one of them just can't pull off a successful Star Wars return? Mishandling an iconic character (see Con #2) could both undercut the momentum of the new trilogy while also tarnishing fond memories of the much-beloved original films.