I've been thinking for a long time that they should have a saga with just Ash, the Girl, and a revolving door of other characters coming and going. And frack me, it looks like that's whats happening. Only instead of a PokeGirl, Ash is getting a boy toy this time.
There damn well better be a lot old characters, be they from the Games or Show. If we're going back to previous regions, better bring back old friends to make it worthwhile. They better not screw this up like they did with the Battle Frontier...
Though the fact they're using this to promote Masters gives me hope (Arceus willing, this will let more people out of the Never Animated Jail)
The downside to going back to old regions? The villain teams' stories are done, so that means this series could be really light on antagonism. We'll have to hope and pray to Arceus that A) The TRio are still as good as they were in XY and SM, B) there are more Team Rocket members, C) some meaner rivals, and D) hunters and criminals cause trouble.