Bwahaha yeah, that part was really WTF. I was hoping for a badass match but really it was just like *throws kunai!* *naruto dodges!* *throws wind attack! *naruto dodges some more, also lets her poof a few kagebunshins to establish she's Badass!* *haha i straddle you and have you at my mercy! *no, I have you at my mercy! *okay then -- onoes, damsel tiems*. The fuck srsly. She was unworthy of a naruto baby. (she did look kinda like a sakura/hinata lovechild though didn't she. XDDD)

... oho, now that could have happened. Hmm. Maybe Juugo is now living somewhere in Iwa, as people try to reproduce Oro's research and FAIL PRETTY MUCH ALL THE TIME.
Karin might WANT to, but on her own I don't think she has the drive -- she seems pretty survival oriented and she's not a heavy-hitter, she'd never go alone or if she couldn't get something out of it for herself.