VM/CT encryption

mmhhh no news from this front.

What about other questions:
- will it be possible to encrypt existing VMs/CTs?
- will there be a schedule/startup integration that only allow a certain CT to start, if the encrypted CT is started/unlocked correctly?
 
- will it be possible to encrypt existing VMs/CTs?

Always via backup&restore or if you use storage encryption, e.g. via ZFS just a "move disk".

- will there be a schedule/startup integration that only allow a certain CT to start, if the encrypted CT is started/unlocked correctly?

This is currently as follows: The startup order is determined by the order given in the specific order as shown in options. If the storage is already decrypted and accessible, it'll start, if it's not it won't and you'll get an error.