Pre-e4 seasons should be either scripted or set to change every x hours based on the in game timer. The idea being that it gives the feeling that the trainer is on this lengthy adventure. I feel like the month it took to change was too long in bw, because I got to the end game before there was a seasonal change, so according to the game, I went from rank amateur to regional champion in a single season.
Also, I hope GF implements a "classic" battle mode, where the 3D models are replaced with highly detailed, segmented sprites. Obviously, its a buttload of work but they're also likely saving an enormous amount of time now that they can just import the previous games models, at least for as long as we're on the 3DS. I like the models, but I'm legitimately a huge fan of sprite work, and I adore pokemon sprites.