I think that the question of what happened to CL has zero to do with VIP guests or proposed "bubbles." I think it is a simple matter of closing the Club Level lounges because the Health Dept is not allowing ANY self-service food options in common areas right now; not so much as a coffee pot.
If you take away that lounge & extra housekeeping, what then differentiates CL from any other high-floor room, at least in substantive terms? Even requiring key-access in elevators raises the amount of surface touching. I think it is entirely possible that the rooms may still be sold, but just not as CL for the time-being.
Here is an tangential thought relative to the invasion of the NBA: king-sized beds. The players, at least, will need them to be comfortable and get good sleep, which means that since the number of them available at WDW is comparatively small, Disney may well need to change out furniture to meet that demand at a single resort. While capacity is being held down, the logical thing to do is to borrow those beds from elsewhere on property to concentrate them at the NBA resort. How many of them might be borrowed from CL rooms that really can't be sold as CL due to common-area use restrictions?
Come to think of it, another thing that might need to be shifted is gym equipment. WWoS is a competition venue; it doesn't contain a lot of workout areas other than open gyms. That many athletes wanting weight/resistance training at once will mean bringing it in. They can surely rent it, but they could choose to also move some.