You can only migrate your Blogger account, and Old Template blogs, to a Google account and New Template (Layout) blogs, when you receive the invitation. And even if you see the invitation today, that's not to guarantee that you will see it tomorrow.
From discussions in the forums, it appears that the secret ceremonies continue.
- How to remove Google account from Blogger account?
- Switching from old blogger to new
- Stuck between the New and Old Blogger
- Getting multiple blogs under one Google account
And, even if you do get the tap on the shoulder, and it lasts during a convenient time for you, your blog(s) might take more than a few minutes to migrate.
>> Forum thread links: bX-*00031
>> Copy this tag: bX-*00031