It's NOT a "branding/name change" of "Marriott Vacation Club" to “Abound by Marriott Vacations.”

The old name of the points-based program for owners to reserve across the Marriott Vacation Club portfolio was "Marriott Vacation Club Destinations® Exchange Program." It was a wordy, generic name, but it was around for many years.

The big change this year is that Sheraton Vacation Club and Westin Vacation Club are being brought into the same program. Owners of the three brands will be able to use the same points "currency" across the whole portfolio (as well as for some external exchange options).

I suppose they could have rebranded it as "Marriott Vacation Club, Sheraton Vacation Club, and Westin Vacation Club Destinations® Exchange Program" -- but that would have been worse than the old name, which wasn't that good to begin with.

As of a few years ago, the parent company of all three brands is Marriott Vacations Worldwide.

The new name for the exchange program is the shorter, more marketable "Abound by Marriott Vacations™."

Abound is a real word (unlike Bonvoy) and is defined as something that exists in large numbers. Good branding for access to a large timeshare portfolio.