I don't know. Luke brings "balance" by killing all known dark side users; only light side users exist now, and no one knows how it's going to play in the future

I don't know. Luke brings "balance" by killing all known dark side users; only light side users exist now, and no one knows how it's going to play in the future (we merely see the celebration through the galaxy, not how things evolve in the years after). There is no balance at the end, only one side is winning.