GMS Server Status Discussion 2012-01

Before midnight in los segundos or 3:00 am eastern standard.

Unlikely.
Assuming the reason for the shutdown is those items that lost their enhancement indication on server transfer, it'll take them hours just to decide what they want to do about it, and then hours more to implement it (also depending on whether they need help from Korea).
Merely rolling back is no good because MTS does not get rolled back.

So yeah, I don't expect to see the game up tonight, and am somewhat uneasy about what their solution will break.