Why would you want to come back to a team of strangers?
Didn't every player who has since joined another club find themselves in a team of strangers?
If the new owners are intent on establishing some level of continuity with the "new" Wasps in terms of personnel and try to re-recruit wherever there is an opportunity, be it players, coaches, back room staff, then I could see why it might be attractive.
I'm not deluding myself, many we already know are spoken for next season and beyond, and many more may not want to drop to the Championship whether or not Wasps' budget would stretch that far, but it is not inconceivable that the new club will be built around a core of returning employees.