If he’s actually going to be moved, there will be plenty of teams wanting him. Not exactly a cap dump like we’ve seen. Might be for Vegas but they’ll get a prospect or a couple picks for him. Nothing special. Maybe a 3rd and a 4th. If he’s moved this would be a typical Flyers move. You replace Niskanen right away and they won’t be searching for his replacement half the season.
Doesn’t make a lot of sense from the Vegas angle unless they’re moving cap for a run at AP, as it doesn’t look like there’s a C on the market any better than what they already have. If they’re going for a cap dump, Stastny should be who’s moved. Much easier to replace from within.