My thought is, Yahiko and Nagato together are Pain. Something like, Nagato took the Rinnegan from Yahiko (sounds familiar ). The looks from Pain are clearly from Yahiko, but with the eyes from Nagato.

And the woman who's partnered up with Pain is Konan. It's quite clear and no doubt about it (the flower in the hair)

Great episodes, never occured to me that Jiraiya would have trained two several teams.