Unfortunately it's not just WoW, it's the entire Battle.Net game system (WoW, D3, SC2, HS). While I'm glad it's being fixed, I'm wondering why they didn't do it yesterday, when people expect systems to be down.
I would assume they haven't figured out how to do it by then, and is certain they found the problem now. So rather do it now than in 5-6 days.
Everyone has so much to say
They talk talk talk their lives away
Polishing the foot I plan to park in Blizzard's ass
They are also doing 4 sets of realm mergers. It is possible to have more than one hobby. Might I suggest japanese rock gardens, or bonzai trees? It would seem you need to reduce the stress in your world.