Tkachuk didn't play in the last Jets alumni game 3 years ago. They might be able to convince him to show up this year.
Shane Doan, Robyn Regehr, Curtis Glencross are all players who were still active the last time there was an alumni game for these teams. Also, Iggy and Kipper, of course.
Actually, the Flames could bring most of their roster from the 2011 Heritage Classic for the alumni game:
https://www.nhl.com/gamecenter/mtl-v...me_state=final
It looks like Backlund, Gio, and Bouwmeester are the only players for the Flames that game who are still in the NHL.