Tbh I think 'don't let Sephiroth anywhere near Nibelheim' is going to be Priority 1 for them at least for a while. At this point they really have no idea what triggered Sephiroth's breakdown so it's not worth the risk.

That said, Wutai does have possibilities. I doubt the Wutaian will be happy to see them, but having the Demon of Wutai gone turncoat drop into their laps does open up some options for them.