What Choice Privileges unlocks

If you already hold Choice Privileges Diamond, you're one step from Wyndham Rewards Diamond status. The match itself is free and works globally: it holds for 90 days as granted, and staying 10 qualifying nights with Wyndham inside that window extends it further.

That same match is also the first leg of a longer route into cruise status. From Wyndham Diamond, it picks up MSC Voyagers Club Gold along the way before ending at Explora Club (Explora Journeys) Gold status — both further hops are one-time, once-per-lifetime matches, so once you've used them you can't repeat the trip. The reference below lays out the exact terms for each, including MSC's re-cruise requirement to keep Gold and the proof-of-tier and processing window Explora asks for.

Grabbing the Wyndham match costs nothing, so there's little reason to skip it. Pushing on to MSC and Explora status only pays off if you're actually planning to sail with one of them — burn a once-per-lifetime match on a cruise line you'll never book and there's no way to get it back.