Maybe they'll do it like they did with the Mugen train arc. They first released it at as a movie and later split it into a season with a few extra scenes. Like that they can milk it to the max and we still get a season.
I just want them to balance the fights out so folks get good entertainment in each or this will be an ish show. I do not like the decision due to how they will seperate the fights and in the manga it was 1 continuous event etc.