Necno (Creator, Forum owner) is working on Birthright, and with study and work commitments, is no longer working on WM.
Docclox is another major contributor working on other games as well has his own creations, but has stated that around August he'll increase activity on WM.
Other Devs, IDK but from what I see around here, are not working on the game further, so there won't be any additions realistically at all.
Fixing bugs and maybe expanding on things not fully implemented in game but still there might still be worked on though.
Mad Libs? Libido? The nymphomania trait? Are traits picked up from the first 4 level increases always from a small pool? (Like charming, Quick Feet (or something in that order), Nymphomania ect)
Adding traits is not possible, and I don't think they'll be adding more in either.