The lounge is still there, I was there a month ago. It's at the far end of 2C on the upper level, before the connector to 2A, on the left. It can be quite a walk from 2E, but that'll get the blood flowing. Hopefully you won't have a lot of bags to schlep.
You will have access based on your DL flight in business class, you can just show them your boarding pass. (Status does not get you in, but Y/PE passengers can pay).