Hm.. my favorite?
Imprimatura, followed by Deliquesce. However, since you mentioned wip, I must say this one might be my favorite.

It's religion-based, blasphemic, and depraved. It will be a DD:DNE, and it has multiple days grouped with it.

It is a doozy, but from the teasing spoilers I give Pinki and Emi, whether they're just boosting my ego or not, they are extremely excited~