There's no official ETA on this, but we will need to update the haks, so we're looking at a weeks delay at the least.
EDIT: Because many people seem unaware of this: you can revert your 1.65 installation back to 1.64 using the revert patch for your correct version. Pick it from the list here.
Follow instructions there carefully and you'll end up with version 1.64 which means you can play on Avlis.
There's no ETA for the update for Avlis yet, but it's probably somewhere next year.
