Thank you for the responses to the call for beta testers. We will notify those who have been accepted.
We expect this feature to be available to all by the end of August.
The functionality to make it possible to change the name of an O365 tenant, especially with Sharepoint Online in mind, is being planned. There is no ETA at this time though.
An error occurred while saving the commentScott Isaacs commented
In the plans is better than not. Is there even an ETA for an ETA? I'm sure not, but I can hope...