Assuming that list is in any way legit, super disappointed that Malthael is nowhere on that list. He's probably the character I've been most looking foreword to seeing get added, at this point.
As for Valeera, while she's neat and all, the recent glut of WarCraft characters have been a bit much. There was a time where they'd at least toss out a StarCraft or Diablo character every once and awhile to break things up, but I guess they gave up trying for a little variety. -_-