I guess one of my biggest worries(which isn't that big at all) would be what are they going to be doing with all the content relying on current zones(dungeons, hamlet defense, etc.)? I would imagine that they're not taking a wrecking ball to ALL of the zones, as that would probably have an adverse effect on said content.

Things I'm most excited about personally are the Floating Colosseum by Limsa(people will FINALLY flock out of Ul'dah!), the Frontline battles and Free Companies and FINALLY Sahagin and Leviathan making their appearances! I crave more info. Hard to believe they were sneaking this thing around the office.

It's a brave new world.