See
http://members.marriott.com/faq/#wha...-in-the-future
which I have copied into the wiki.
Q : What will happen to my Lifetime Status when the programs merge together in the future?
A : 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.
Originally Posted by
BMGRAHAM
I don't know why people are so worried about this, when it says here that the status will be maintained
I guess only time will tell whether their promise to "recognize" means the same as "maintain".