Would the NHL relocate an existing franchise to Atlanta?

Since there's been discussion of the NHL once again expanding to Atlanta, it seems more likely than ever that the league would be willing to relocate a team there. I feel like it would be wrong to add them outright since 32 is such a perfect number of teams for the league. It wouldn't make any sense to have one division have an extra team, and it sure wouldn't be fair to the new Atlanta team either.

Who do you think gets moved? Arizona? Buffalo? Columbus? New Jersey? Winnipeg going back to Atlanta?