Okay this is a bit out there

... but I wonder if Virtue/Moir could be a possibility for coaching. Scott did some coaching in Gadbois this past spring when the coaches were away. And he, along with Tessa, recently did some coaching for Weaver/Poje during the Thank You Canada tour (see
https://twitter.com/fsonline/status/1083485332224557060). I'm thinking it may, possibly, be only a matter of time before V/M start their own school. It sure would be interesting to see what they could bring to the Shibs! I have no idea, though, what the Shibs' personal relationship is with V/M.
I also wonder if there is some lesser-known, younger, but talented coach that they could turn to. Like when Volosozhar/Trankov plucked Mozer out of obscurity to coach them.
Gadbois just seems unlikely, with 3 other top U.S. teams already there, including main rivals H/D. And considering that Marina's technical dance coaches (Epstein, etc.) are only going to be part-time in FL, that seems like a question mark. Igor also seems questionable, after the acrimonious split with Marina, and the Shibs' family getting partly blamed for that. Although going with Igor would, obviously, allow them to maintain their current home base in Detroit.
There's also Fusar-Poli in Italy, if they wanted the adventure of living abroad!
It's interesting to speculate.

ETA: Another thought, I wonder if they could become the first full-time students for Charlie/Tanith White. (I don't know if Charlie/Tanith are interested in coaching full-time, but if they were ....)