Originally Posted by
Darsithis
It's very different than Wrath.
- Huge class changes and they added mastery as a new stat, dropping armor penetration & defense
- No more talent trees in MoP. You get tiers of specific abilities every 15 levels or so
- LFR - looking for raid. Essentially 25 man dungeons that drop raid gear and raid tier gear but about 25 item levels lower than normal
- Flex - flexible raiding between 10 - 25 players that drops gear 13 item levels lower than normal
- New class, monk, 3 new races: worgen, goblin, and pandaren
- New continent to explore, Pandaria
- New world bosses and daily quest zone hubs (Timeless Isle, Isle of Thunder, Isle of Giants)
- Lots of new lore
- Challenge modes - hardmode dungeons that scale your gear down so you can't overpower them. Compete with your realm for transmog gear
- Transmog! Make an item look like another item! Bring back old tier sets and wear their look while wearing you current gear
- Heirlooms to 85, Garrosh drops level 90 - 100 heirloom weapons for WoD
- Scenarios! 3-man story dungeons that play out fast. You can also run heroic versions with a pre-made group
And tons more, more than I can cover easily here.
I suggest checking it out and seeing if you like it. Only you can decide.