Originally Posted by
Netherspark
Huh, that might confirm my theory then.
That Wow is going to round up all the loose ends and lore/minor enemies that were created in the online game, then between now and the end of the final expansion we'll finish off the Old Gods etc and Wow will end (or stop getting updates anyway). After that Warcraft 4 will come out and continue with the Burning Legion etc as an RPS/RTS.
More than anything though I think she just made a mistake and called MoP "Warcraft 4". Even if there were going to be a Warcraft 4 I doubt it would even be in development yet, let alone brought to Blizzcon only to show nobody.