I'm not sure if something like this would be considered a "consumer unit"!
There aren't enough ways so considering having a short cable between this to 2 or 3 consumer consumer units, one for each phase.
Currently there is also no RCD protection for socket outlets, so these circuits would be transferred to the new consumer units.
Would 2/3 C63A MCBs in the Loadcentre offer sufficient differentiation to MCBs / RCBOs in the new consumer units? These would be of the Type B variety.
Any other suggestions?