As you can see, as many of us said we still have AROUND 5 months of MoP.
Calculate it simple. in 3 weeks next pvp season + a duration of 20ish weeks for it then add around 2 or 3 more weeks to end that season.
Result? at least 5 more months of MoP.
So for everybody who said we will have WoD as soon as march or even april.... Enjoy.