The only thing I'm sure is that it's not Toei Animation. Everytime an anime is announced people make the same argument around the internet but their last project was WT years ago, and Toei have been focusing on their own IP (Precure, Ojamajo Doremi) and on the license they already own (Dragon Ball, One Piece, Sailor Moon, Saint Seiya, Digimon, Kitarou) instead of picking new things to do. Pierrot and JC Staff makes much more sense, even more the second one which has tons of projects that they're picking.
Outside of that, just wishing for a good staff as it matters nothing if it comes a good studio if the staff for the project is average or bad.