My two-cent as Terry's creator:
He is done as far as TF content goes. I feel he's sufficiently moddable given the options in the game, and at this point I would rather focus on more character building than body building. Adding more TFs would increase the workload on the little fox exponentially, and given the content I haven't even finished yet, that is a whole lot!
As a firm believer of "if you're not going to do something well, you might as well as not do it at all", I won't do it because I can't be arsed to rewrite all the sex scenes to account for a taur body type, nor can I be arsed to do 2 versions of all planned content, one for normal bodies, and one for taurs. Let's face it, a lot of stuff that works for bipeds, or even nagas/goos, simply does not work for taurs of any kind. The chief example being masturbation. Unless you happen to have tentacles, it's nigh impossible for you to partake in any scene that involves guiding your own member into specific places, simply because you can't reach it. Also any position different from doggy-style and laying on your back is extremely awkward.
I don't have anything against taurs. If there ever is a character in the game that is purely a taur, I'm fine with it, and will account for it properly, despite not really liking taurs. From my end, however, don't count on seeing any love for taur PCs.