Best practices for updating/adding content with Addressables bundles

Hi guys I have just setup addressables and i have custom build script that can download from PlayFab CDN and I managed to update objects in my group and that work like magic :) But...my intention is to "push" new content via this system without updating the game. I would have couple of levels in my game and the rest would be available when they are finished. How to efficiently do this? I have reference set to my GameObject for example but that is "fixed" thing and I want to be able to add new objects somehow. Any ideas?