Originally Posted by mnbp

Ok - let's define some terms.

Global Entry - expedited entry into the US. GE members are automatically eligible for TSA Precheck by virtue of their GE membership.

Standalone TSA Precheck. A separate program operated by TSA - has a separate application process and a separate Known Traveler number (KTN).

Anyone may apply for the standalone TSA Precheck program. https://www.tsa.gov/precheck

My suggestion: Now, apply for the standalone TSA Precheck program - presumably your application will be accepted, and you'll be given a TSA Precheck KTN. Wait until much closer to your GE expiration date and then submit a renewal application for GE. If GE renewal works, fine. If not, just start using your new TSA Precheck KTN instead of your GE KTN in your airline reservations.