Will we be able to customize Apple One?

With the announcement of the new Apple One subscription service I was wondering if we will be able to customize it? I have Apple Music and 50GB of iCloud storage that I already pay for. I also have a free subscription to Apple TV+. In looking at the bundles I would want the individual plan but I don’t want Apple Arcade. Would I be able to swap it with another service? I doubt I will keep Apple TV+ when my trial is over because I have hardly watched it. If I could switch those two services, or at least Apple Arcade, with something else I would consider the Individual bundle. Does anyone know if it will possible to do this?