I wonder what happens when he comes back. February is an odd date. It's possible he comes back a month early or something to complicate things, but his season is mostly shot. Obviously, they ideally would send him to the AHL when he comes back, but perhaps a really bad team puts a waiver claim on him and is willing to let him take up a press box spot as he rounds into shape. I'm not sure what the chances of that are. It'd be late enough in the season with the 23-man roster limit ending after the late February deadline. A bad team could look at that as an investment towards next year, while still getting him some games late.
But if the Flyers wanted to give him a 2 week conditioning stint in February and call him up shortly after, it can be worked out so he can stick around and not go on waivers due to the non-roster limit, while not really impacting the team, cap space provided. It really all depends on the likelihood he'd get claimed. After this season being lost too, it might be moot.