Thanks for this detailed explanation. It's much better than any information I did receive vie e-mail from KnC.
(But getting some info today about the hosting via e-mail made me calm down as well.)

I assume this is the "wallet" address, or?

http://blockchain.info/de/address/1D5FhoiuLMJJ43BCMGidwvbKWfr71g1vH9

I still did not quite understand the current "setup" - I assume it's something like this:

All customer miners in the hosting facility were configured to the new KnC (or some other?) pool with the above
wallet address. KnC did a semi-manual payout for all customers of 2,5BTC per Saturn and 5BTC per Jupiter.
This static setup will continue to mine until the web-frontend for the customers is ready.
At that point the owners can re-configure their miners with whatever (single   ) pool they want.
When the dust did settle there will be an update for the web frontend that will allow the configuration of a backup
mining pool as well or KnC will perform a manual setup of the backup mining pool  

A short confirmation would make me (and hopefully many others as well) happy