*IF* they had the Han, Luke and Leia characters play as them at a much older age and or show up "from the spirit world"  to guide some younger jedi that would be ok I think...

like say the grand children or great grand children of Luke / Leia / Han  start on a new quest / adventure and get some help -- kind of how Obi Wan did with luke.

that would keep the story growing and not lock it into a time to close to the others ....and let them bring in new actors and new stories.