This is definitely realistic, too.
Over at our SB Nation sister site Silver Seven, which covers the Ottawa Senators, they walked through what an NHL expansion draft might look like next summer. And in their mock draft, they have the Flyers losing goaltender Steve Mason.
Here’s the full team they have going to Las Vegas in 2017-18:
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And here’s Silver Seven’s not so confident reasoning for why the Flyers left Mason unprotected:
Went out on a limb here, and decided Steve Mason won’t be protected.