throws the question, how would you and what would you mod in this game? it's quite big. the original Witch Trainer by Akabur, compared to this by let's call it overall game volume.. is a nice game but a mere snippet, with lots of space to add stuff, because it's just this one forward story about one girl, more or less, and such leaves alot questions asked and alot things wanted.
FET has simply too much going, for anyone to come up with a big mod of the whole game. however -some- mods do exist, which alter just this one or that one small aspect, like that Futa mod or the Katara tiny boobs mod; that's not too hard to cover.. modding the entirety into something, sersly doubt anyone will try that. it's too damn big, and the stories actually lead somewhere and do finish. maybe book 1 and 2 will be overhauled by Marty sooner or later, too, (he's mentioned not being happy with what it's like a few times, in the past) then that 'flaw' will be smoothed, too.