I think we had some discussion of this when these offerings started popping up.
Anyway it turns out that Villa Vie defines lifetime as two years
https://www.nytimes.com/2026/10/28/travel/endless-cruise-suspended-villa-vie-passengers.html
I am sure you are as shocked as I am. It's sad though that they pitched it as cheaper than living on land, which I suspect means some of these people are well and truly hosed now.