How long might the distribution of BCC from CG take? I know this highly dependents on the events on 1. august but just in case of a split do you think you will need several days/weeks or would you guess you can manage the distribution in a fast pace?
It's certainly going to take a few days, which I would still consider as fast.
There's a decent amount of users to serve, which means an extra workload for a (rather) small team, besides running tasks and obligations.
Keep in mind that the process is semi-automated at best and the first priority is not speed, but security.
Doing this correctly without any mistakes takes it time, but as everyone knows, haste makes waste.