I think Kanye has already managed to ruin that somehow.
And you're asserting from ignorance. Neither of us know the studio's finances.
Where are you getting these numbers? Blizzard stopped splitting their sub numbers in 2010, at which point the West/East split was fairly close, 6/5 million ish respectively.
http://users.telenet.be/mmodata/Charts/Subs-1.png
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Again, that all depends on the marketing budget, which we don't know.