Hello, Bob---
I received the same email from amazon.uk this morning, and an identical one about Mark's next book, "RMS Olympic: Titanic's Sister", also with 29 November as the anticipated release date.
Meanwhile, on other fora, I'm seeing messages (from Mark) to the effect that the "Olympic Class" book was, in fact, released last Wednesday and (from others) that copies have already started to show up in folks' mail boxes.
Curious, eh?