probably 80% of the mass on US will end up alliance once the season ends and early into wod
i imagine eu will stay mostly alliance
I kind of see this thing happening too, I originally played alliance and just recently switched horde at the start of MoP. Now I have 6 level 90 alts on horde with sweet xmogs and I'm so sad that there's no chance I will switch all of them if everyone goes Ally because of racials. But I def will be taking my main over if that is the case.