Right. But if you look at past pre-order dates for Blizzard games, they typically don't happen that far ahead of release.
I think MoP CE/DD could first be preordered in late July and released in late September. The D3 expansion wasn't much different
I hope WoD has an early summer release, for our sake and the game's sake.
Using MoP's timeline might not work here. Their beta started in March. Pre-orders started July. Here, we'll see pre-orders start either alongside or before the start of Beta.
And they still have another Arena seasons scheduled for MoP.
That'd put MoP in for a July release. If they decide launching an expansion during summer would be crazy, possibly September.