Expansion formula going forward is clear, looming at MoP and Cata.
Blizzcon - Expansion revealed, hyped, and many promises are made. Including faster content updates.
Beta - Everyone gushes at how fresh and new the content is compared to the old expansion.
x.0 - Everyone says WoW is saved, game sells millions of copies, subs jump overnight.
x.1 - No tier, but plenty of new features. The sparkle starts to fade as people realize it's still the same old WoW.
first quarter conference call - Subs back down. Players start panicking, devs sweat.
x.2 - Perfection of the expansion idea. Players start questioning how Blizz can top it. Crazy ideas run rampant.
second quarter conference call - subs steady or down, devs start panicking as expectations rise and subs fall.
x.3 - full panic patch. Tons of niche features added, Blizz starts hyping next expansion.
x.4 - Final raid. Smaller than before, easier, more bland. Lasts 7+ months, players leave in droves.
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