I don't see the problem for the story to be "set so far into the future". On the contrary, I think it's a good point, it will be so far that all the events between post-ROTJ era and this one will be still mysterious. I mean, it was pretty much the same thing for KOTOR era, the story is so far away thet it doesn't cause any "real" trouble of continuity, nor destroying the mystery. Just my PoV...