Auto Attendant and Call Queues with CCE

I know these are due to enter preview soon, but does anyone know how the CCE will work with AA and CQ?  Will we be able to use a line homed on a CCE as a service number for AA and CQ?

If we home a user today with our primary incoming number, but want to convert that to AA or CQ later, will that be possible?  I don't want to deploy something that gets us stuck.

Thanks!