Some new Polaris implementation details in this Q&A between The Points Guy and UA.

https://thepointsguy.com/2016/11/que...nited-polaris/

This one in particular caught my eye:

Q: The Chicago Polaris lounge opens on Thursday. Which lounges are opening next? And when?

A: There will be nine Polaris lounges in total. Houston, Newark and San Francisco will be getting their lounges next, and those three should be open by the middle of 2017. Dulles and Los Angeles will follow later in 2017, and Hong Kong, London and Tokyo should open by the end of 2017, but may not be available until early 2018.