i don't think there will ever be another anime for this story...
#1 too much rape, sex, nudity
#2 story very very long and long way from ending, so unless you want another bleach... ya
if they do make another one it will be either really edited or re-written to make it show-able on tv.
Tho, a anime for berserk in kinda a Shigurui style would be all kinds of badass