The company where I'm working is doing a full rewrite of one of its product from a single-tenant, installed on-premise to a multi-tenant solution in the cloud. Except that the previous version is still worked on (new features & fixs), with perhaps less people than a few years ago. And the new version is developed by new teams set up for this project and the targeted market seems a little different.

Well we'll see in a few years how it ends.