I would really like to see the game have a client for OS X. Seeing ArenaNet is doing it for Guild Wars 2, I'm pretty sure BioWare can do one for Star Wars: The old Republic as well.
And I'm pretty sure the game would see an increase in players, since there is many fan of Star Wars on the Mac-platform. But I might have it all wrong.
All in all, the Mac is not here to die quite yet.