[spoiler]Rowlett evolves into Dartrix, stays Grass/Flying. Litten evolves into Torracat, stays Fire. Poplin evolves into Brionne, stays Water. A demo will be made available October 18, where you'll be using a special Greninja that has the ability Battle Bond, allowing to transform into Ash-Greninja, as seen in the anime. You'll be able to transfer Ash-Greninja from the demo to the main game.[/spoiler]