The same treatment that the StarCraft, Diablo, Overwatch, Heroes of the Storm, and Hearthstone playerbase receives.
All those games receive the same server access, the same customer support, the same content updates, the same online stores, the same weekly maintenance, the same community forums, and so on, just like WoW.
But with WoW the playerbase has to pay $10 per month in order to receive what every other Blizzard game gets for free.
Why?