The FO status awarded for 1MM miles is independent of the MQM-based qualifications.

It does not give you a 25,000 MQM leg up on GM, PM, or DM qualification.

It just means that, should you stop flying DL, you will be no less than a FO each year... as long as DL management wants to continue recognizing you.

I recently went from lifetime FO (was grandfathered under the old rules) to annual GM by passing 2MM miles.

Have often wondered, if DL decides to stop giving me the annual GM, can I revert to the lifetime FO.