From the
FAQs for both programs:
What will happen to my Lifetime Status when the programs merge together in the future?
Rest assured we will always recognize your Lifetime Status, whether it is today in your earned program or in the future with a new, combined program.
We don't know what LT benefits will be under the new program or what will be needed to qualify anew in the future but we know from this and other statements that if you earned LT in either program you will have LT in the combined program.