Hard fork guess: 12/30/16 11:01 AM
New wallet was online over the last week. Now it's been taken offline.

Closed testing done possibly then?
Cutting it a bit fine on the hard fork front.
Most people around here will be aware of the fork, so it can happen at any time and at the drop of a hat. No need to worry about block xxxxx being the hard date as we don't have the wallets.
It's Bittrex that might need extra time, especially during this holiday period - but they are aware of the fork happening soon.