EDIT: Region 1 is open again now. Come and see what we've started to set up.
We have whitelisted Region 1 for a short period of time whilst we work on some new features for the server. We have spent quite some time planning this, and we are sure you will enjoy what we have done.
As for a timeframe on how long Region 1 will be inaccessible to players, it shouldn't be for more than a few hours. We are working on getting this done as fast as possible, so bear with us.
I will edit this post when Region 1 is open to the public again.