Board Thread:Speculation House/@comment-25753555-20160119131210/@comment-26872876-20160126194305

I'm pretty sure they said more characters would be coming out. They've even mentioned maps coming out will be featured in the series itself.

So I'm sure we'll get more Grimm and new Grimm. I do question whether or not boss fights will happen. My expectation would be a giant bullet sponge if they did. Hopefully they do take into account the need to diversify such a fight. Hyrule Warriors, from what I saw, at least tried some mechanics for a boss fight in a mostly dynasty warrior type game. So the possibility to make them different exists.