Estimated time before we can patch? Will it be sooner then launch?

[Chessala]

https://twitter.com/FF_XIV_EN/status/780466829860798464

The servers never come online early for major patches for obvious reasons

This doesn't necessarily mean that we can't patch earlier. In the past, they sometimes had early completion time for the maintenance and the servers were available earlier. Obviously that won't happen because of the housing rush. However, the patch servers have always been up at least a bit before the live time if I remember right.