Unless the new HC just hates Poles personality wise I see no reason why they would want Poles gone. Poles knows he has to give the coach the players he wants and if 2025 doesnt go as planned the new HC has an easy scapegoat in Poles.
Particularly if this will be my first time as HC, I would let Poles be my *****. The Shanny situation is different in that he was basically groomed to be a HC from since he was a kid and they were looking for a GM and HC at the same time.
The only candidate I see that I would expect to push for his own GM may be Vrabel.