I had post a reply at page 3 said the mac client is possible. As i have a mac myself and I do prefer to play the game on my mac with mac client instead of run it though bootcamp. But atm SE only release the game on PS3 and PC focus, from exp of ask for mac client from different game the answer will more like "depend on the sale". And if you need a vote for FFXIV mac client, you have 1 here