Oh, I know it's a pipe dream, Evangela.
They'd be much more profitably served investing that time into other things.
But, that's not to say I wouldn't absolutely love them for it were they to do so.

I'm not delusional enough to think they'd spend several million in resources to gain a marginal boost in monthly subscribers.
Square-Enix fans (or maybe SE themselves) have a great penchant for hyping things that end up not being remotely the case.

Remember when XI was coming to Vita?
Or Final Fantasy XIII Haeresis?

I believe the Mac port of FFXIV will be another one of those situations when the smoke clears.