This is part one in a series of videos the producers of FFXIV plan to release demonstrating the game. The video commentary is in Japanese, but you can really get a feel for the aspects of the game they show. If you played FFXI you will recognize most of what is going on, it has a very familiar feel, but is new and better.

http://www.mmorpg.com/gamelist.cfm/setView/videos/gameID/446/videoId/1669