I don't know if anyone's mentioned it, but I'd like a full version of the Taurico Venidae serum that is mentioned in the Vesperia location log. The current version that defaults to just a deertaur is very good, and well-written besides, but I'd really like something meaty like the Treatment where the character undergoes multiple transformations towards becoming a moosetaur/bisontaur/goat-taur/deertaur/cowtaur/centaur.
I'd honestly like to take a crack at it myself, but again, I don't know if it's already in the works, or if working on something like this is reserved for a particular person, or even if my own skills would be of sufficient quality for such a project.