I predict;
  1. Nothing will change in housing
  2. There will not be male viera or female hrothgar
  3. There will be a change to WHM everyone thinks is a bad idea, but people will still play it more than the other healers
  4. WAR will get a nerf that makes it seem unplayable but it will still end up being seen as the MT.
  5. PLD will get a buff that makes it seem like finally it is the go-to tank, but it will still lag behind the others but also become the go-to OT because DRK and GUN will have crazy complex click-spam rotations that just annoy too many players.
  6. RDM and SAM will get the nerf-bat like a 3am mugging in a backalley.
  7. Dancer will be silly overpowered, but also have a rotation that combines the worst of buff management from BRD and ammo from MCH.
  8. Dancer will have it's own unique gear, just like almost all of the other melee classes. GUN will use the same gear as all the other tanks.
  9. Tank DPS / Enmity will get tweaked again such that no one will want the Tanking accessories until at least 5.2...
  10. Squadrons will still not be updated.
  11. A new Eureka will be teased that is even more grindy.
  12. The amount of buttons on our action bars will not actually get any smaller...
  13. Despite the above we will all still come away psyched out about the new expansion because there will also just be a whole lot of neat looking dungeon and story content, and the rest of the job changes will be really nice.
  14. The benchmark will still not be ready, in fact it won't come out until after the expac is out, if at all.