I would be fine with this. It obviously opens up the doors for all sorts of plotlines since, presumably, the Republic would have experienced centuries of peace. But if Disney wanted to take another crack at Vader's story, I would love it. Just scrap the prequels and get Vader's story done right. Not to mention the financial incentive of having a good director, credible actors and the Vader mask on the screen again is probably too lucrative to resist.