If I purchase the Xbox Series S, and have a disk, can I get all my data and expansion packs...

Any digital purchases are tied to your account and you'll be able to use them on the Series S. That would include add-ons.

You would need either a Series X for the disc drive or buy the game again digitally unfortunately

Thanks, would I still be able to keep the add-one I’ve purchased?

Hello, first it's a pleasure to be able to help you today.

My name is welcome to the community.

Hello Ninja1024, unfortunately if everything is not on disk and possible a transfer to the Series S, it would only be possible if the items were typed, then you would log into your account, and you would have access to them in your Series S.

I installed my games from disk and downloaded updates and expansion packs to my new console with my primary gold-family account that I purchase all my DLC with! I understand that. But, my licenses will not transfer!