A modern warship line without the steam-and-shell revolution

What would a modern age-of-sail warship look like if the transition to steam-powered, rifled, shell-firing turret ships never occurred?

It might begin from a Warrior-like ironclad, but two centuries of different technological evolution would make the modern result highly unpredictable.

HMS Warrior offers the nearest early reference because ships of that generation could still rely heavily on sail. The scenario then spans roughly 150 to 200 years of alternative engine, weapon, and wartime development. Diesel or another propulsion system could still emerge, and each conflict would reshape the next design. A modern vessel might retain a floating hull, but its form and the culture's definition of a warship could be completely foreign to present expectations.