No way i would give up my cat girl for a male one. NEVAH !!!!
It could be nice to see those missing genders however, FFXIV is not the type of MMO that actively encourages you to build multiple characters as opposed to WoW or Aion. The best proof of that is the extra fee to make more than one character. If you already are lvl 50, chances are that you're gonna be pissed because you dont want to start everything over to play a gender you initially wanted to play as.
It pissed me off soo much in Aion to have to start everything again if i wanted to play another class. Its a bit too late to introduce new races. Either now or later. Can you imagine in XI starting from scratch and bringing the new char to the level of your main (gear, access, missions) !? This game would be more suited for a barber shop, additional hair styles and micro transactions for character remodeling.