Didn't get an email but checked out the mystatus page and saw this. I think it's the same message as last year with a bit of re-wording.

Reaching United Global Services

United Global Services® is our exclusive, invitation only status, reserved for top MileagePlus® members. We extend a limited number of invitations annually to select Premier® members based on their outstanding United and United Express flight activity over the past several years. Unlike Premier status qualification, eligibility for United Global Services is not measured by the number of Premier qualifying points earned, but instead on several other criteria.

• Members who receive United Global Services invitations tend to increase their flight activity each year, fly in premium cabins, and purchase fully refundable tickets – all exclusively on United.
• MileagePlus members directly influence the annual criteria, as we compare activity amongst our top fliers.
• Achieving status is increasingly competitive each year, and previously holding United Global Services status doesn’t guarantee a future invitation.

Book your next United flight today!