Well i am leaving the company and the country (i am in the airport right now) in which i did some testing. I guess i can share something with you. More things will be official in a couple of weeks if i understood, but, basically, we'll have a YZ version (i guess the counterpart will be XZ) . Just tested some new fight mechanichs (you can pay game coin to receive stats boosts and weather conditions) and new mega dynamics (Zyggy Y will mega evolve just knowing Waves; mega jynx, Jumpluff, magmortar and glalie will be also able to mega evolve due weather conditoons). No clues about the story but i guess will be really weather-related.