Physical stat distribution will affect both crafting and gathering classes as much as it does everyone else. There will be "open world" NMs outside of guildleves, unfortunately.
New hairstyles will be added, as well as the ability to change hairstyle in game after you make your character. Crafters will be able to cooperate in large-scale projects (cannon, boat, wedding cake) so more fun for you and your company!
There will be guildleves where crafters and adventurers have to cooperate. The guildleve issue will be fixed so they cool-down will be significantly decreased from 48 hours.
"Anima" regeneration will have to be raised since you'll have to travel more for more frequent guildleves. The faction leves have you fight different beast-man tribes and such.
And here is the official Final Fantasy XIV - Trailer CGI
http://www.youtube.com/watch?v=1VGCZbB_VpQ&feature=player_embedded#!