Ultimately, one will have to move before the season starts, or else one won't get the playing time they deserve.
The team also has veteran Jacob Markstrom, who carries trade protection, and an $6-million annual deal. It's fair to say that he is unmovable barring a major sweetener.
So, Vladar is the man out, and he'll certainly get a lot of interest. He's still young by goalie standards, and won't be as expensive as many other options considering Calgary has no real leverage.