@Witson
I am of the opinion that Deen wouldn't be able to pull it off, not to mention that they would probably outsource it like they did with Nanatsu no Taizai, maybe.
Ufotable or Bones seem the better options, heck even Mappa or 8bit.
The only example of a good show I remember from Deen is Konosuba and maybe Fate(although, I personally don't like that adaptation).
I probably missed a lot of shows from them though, however, I currently don't have much faith in them.
Although, they are better than Pierrot.