Check out this YouTube video that combines Wynn's Encore renderings with construction photos:
Huge thanks to Mike E for tracking this down.
Also, this piece in the Sun on Encore:
Wynn talks about hoping to open on December 22nd if he can get temporary occupancy before that. In the past they haven't seemed as worried about getting that occupancy certificate so why this time?
The piece also talks about opening a couple of hundred rooms per day so I guess we have confirmation of the first Wynn soft opening, at least when it comes to planning.