Me: "What won't I like?"
Husband: "They took out Path of the Titans."
Me: "What's that?"
Husband: "Or maybe not."
Me: "Anything I'd actually call bad news?"
Husband: "Did you care about heroic Deadmines?"
Husband: "Then no."
No more talent points. Instead, your guild "unlocks" features by leveling and you have to be "exalted" with your guild to get the best things. I really like this because guilds won't have to argue over what to pick and what to leave out.
Guild tabards available for mounts.
Rated BG Mounts
Mounts for rated battlegrounds for awesome people at the end of a season.
Less important now but still useful. A secondary profession, you can still get neat, fun little optional things like you get with fishing.