Could a future book explore cruiser design?

Is a follow-up book on cruiser design likely?

Possibly. A cruiser-design book is expected at some point, although there is no immediate commitment.

A future book on cruiser design is possible, although no immediate commitment is made. The viewer links the question to a passage in Tribals, Battles and Darings about HMS Ashanti's visit to Freetown. That visit was part of a continuing relationship involving the Royal Navy, Freetown, and Ashanti rather than an isolated anecdote. Those diplomatic and human relationships could form part of the prospective design history.