Well i did plan on fapet fusion, altough for ranking them up (2 legs walk) and making them more adult (size of TC / Black). The futa thing is supposedly rare and searched for, yet i'll consider the idea (maybe for free mode, since story and lore can be bended in there).
"benection/curse by the priestess" : nice, i'll keep that in mind, it'll come in handy (Lvl 1 simple magic cast, Lvl 2 Lewd cast , Lvl 3 Crotch lick or liquids drink) ;)