I think they'll be sticking with these three ideologies throughout the upcoming episodes. In the beginning of the premiere they had the scene with each army represented by their respective fruit. Takatora and Mitsuzane were Melon, Kaito was Banana, and Kouta was Orange. Obviously Ryoma, Sid, and Minato would fall behind Kaito, not sure where Oren, Jonouchi, and Zack would align with at that point.
Outside of that It was a little boring and the Kamen Rider Fifteen reveal was blatant showboating for the movie.