One thing's for sure, EpVII needs to be smaller for many reasons. I think they should slowly build up in size to Episode IX, which, in my opinion, should be the largest movie ever. I'm kind of hoping this because I think it should be everything that ROTJ failed to be.

Speaking of being what ROTJ failed to be, I think EpIX should have an ambiguous ending. I would have loved to have seen Luke walking into the sunset, destination unclear. So have Luke's son do just that. I think it would be awesome.