Originally Posted by
cfischer
This is not what they communicated prior to 8/18. They were very clear that anything that was matched to *W Gold would get Marriott Gold and everything that was externally matched (not from *W Gold) to Marriott Gold would get the new Marriott Platinum. Now, they could have decided to make it easier and more generous in the meantime, but I somehow doubt it.
It's a little weird though because effectively the way that people with *W cards got the old Marriott Gold was that
1) *W cards matched to *W Gold
2) *W Gold (pre-08/18) matched via linking to old MR Gold (50 nights).
I suspect that the reason UA elites (and likely Amex elites) who matched before 08/18 will keep the 50 night level in MR (old gold/new plat) is because they matched via the old mapping.
Any new matches, whether in remainder of 2018 or in 2019, will be mapped against the card mapping to the new Gold 25 night level, but they aren't likely to go and try to "claw back" the higher award made under the pre-merged program, just port the status over 1:1.