Right now there is a clear separation between Lunus and Helian chambers and we can for example build only 1 T2 Lunus Hall, but we can also build 1 T2 Helian hall.
My hope would be that the maximum amount would remain the same, the only change would be that we can choose to use 1 fractional chamber (for example a T2 Lunus Hall) twice or both only once.
Easier said... Instead of 1 Lunus hall and 1 Helian hall... Have the choice to use 2 lunus halls and zero helian halls.