United debuted their new Polaris lounge at Chicago O’Hare in the old club and first class lounge space at gate C18 a couple of months ago. This is a business (and first) class lounge. It is not a Star Alliance Gold lounge and not a United Club.
Here’s the timeline for Polaris lounge openings over the next 24 months which will bring the number of new business class lounges to 9 by the end of 2018.