Some of these are stupid but not out of the realm of possibility.
|Ricardo Montalban in Spy Kids 2 - oh boy.....|
I think rewriting the part out of the movie or having him with an injury in the movie, depending on what he was doing in the film are good options given the bad situation. Moving the movie to 2016, perhaps only until May (where the other Star Wars films opened by the way) might be the least damaging option of all. We know Disney wants a Christmas movie release but this is Star Wars, and Star Wars is a summer film!