"From the lowest valleys to the highest floating islands, no terrain will be beyond your reach."
If that right there is true I will be one happy fellow. I love flying in games and exploring, but in most of the few and rare MMORPGs with flying mounts there's always invisible walls I find myself bumping into and it sort of kills the immersion (I know, I know, "immersion" is that word that lots of people hate when it's brought up, but I enjoy RP and exploration in my MMORPGs, so to me it's important!).
For the three months of playing FFXIV, one of the things I have loved most about the game's design is how it constantly finds ways for you to go back to old zones, something that most (if not all) MMORPGs fail to do. I love how varied and detailed each zone is (although admittedly the graphics don't really make use of my beastly gaming rig, but hopefully the DirectX 11 update in the expansion improves upon this though), and my only real complaint about zones would be that they still feel a bit maze-like, but it's a vast improvement over 1.0, that is for sure!
tdlr: Can't wait for expansion to explore more with flying mounts! (Notice how I didn't tell you peeps at the beginning that there was a tdlr for the lazy? I made you read. I did that. I made you a little bit smarter today. I deserve some cake. Excuse me while I go get some.)