
OneDrive is tied to your MS account, not your subscription. Everyone with a MS account has a OneDrive account irrelevant of whether they have a subscription or not. Provided you don't delete your MS account then you should be fine. Of course if you exceed the max for the free OneDrive version and you stopped your subscription then that extra data would be removed (not sure the process there). But that doesn't seem to be the case here. Irrelevant, for good DR planning you should probably consider having a backup of your OneDrive data anyway. After all someone can accidentally delete data from OneDrive or, as happened recently, there can be a sync issue and OneDrive may wipe your data for you. So maybe you should consider backing up your data before you do the update. Provided you're using the same MS accounts for the new subscription the data (and emails and notebooks, etc) should all remain in place.