Actually, ifyou take it a little more seriously, it could be pretty cool. After all, Urd is the Goddess of the Past - so each of the Urds would be representing an alternate past. Make it an inversion of the "a whole bunch of time travelers from different futures come back" schtick. Keiichi, Belldandy, and possibly Skuld all wind up in a strange new place with at least partial amnesia - and a huge pack of Urds all fighting to be the past that they came from.
Okay, so you'd need a *lot* more (at first) hidden explanation to make it make sense from a causality standpoint, but it's an interesting start, no?
Okay, so you'd need a *lot* more (at first) hidden explanation to make it make sense from a causality standpoint, but it's an interesting start, no?