Still pay attention to your backups
Now it is possible to play The Crew 2 without the need to go online. This is the promise hybrid mode of the game, which allows you to choose between online mode as well as offline mode.
To properly manage your saves, you will simply have to make sure to transfer your progress in online mode to offline mode, given that the game will take into account two types of saves, those in multiplayer, and those in solo. This means that progress made in offline mode cannot be recovered when you want to play online, but you can however recover all your offline content, such as your Season Pass rewards or those from Ubisoft Connect.
This offline mode will not allow access to certain challenges in the game which have been designed for multiplayer, as well as certain trophies and achievements. But at least the game will remain available in its entirety even after the servers are shut down, which was requested by the community. All the details can be found on the Ubisoft website.