I know that Dreadnaught was a bit before the cruisers and it was a battleship but the innovations in design and power plant might have had an influence on the cruisers you mentioned..
Not really. The development of the cruisers which are the subject of the book goes back in a chain to the early 1800’s when the fist wooden frigates were converted to steam.
The “Line-Of-Battle-Ship” is a completely different type and is a ship that was intended to slug it out in the line of battle. These were the monsters with three and even up to four decks with rows of cannons. This is the type that all modern battleships trace their linage back to. See http://en.wikipedia.org/wiki/Battleship for a quick and dirty run down on this, with http://en.wikipedia.org/wiki/HMS_Dreadnought_(1906) for the HMS Dreadnought. The latter was in fact an idea which Fisher came up with but by this time, so were other nations, notably the United States. Fisher was the one who had the juice to make it happen in Great Britain.
Which is not to say that lessons learned from one type were not tied to the other. Armour is still armour and the same priniciples still apply.
It will be interesting to see how they stack up against the German cruisers too.
In terms of fighting qualities, the Germans were more or less on par with the British but where they really did well and where the British just plain sucked was damage control. German ships proved to be enormously resistant to battle damage and an example was the SMS Seydlitz which was severely mauled at Jutland.
The British might have done better in this regard with their battlecruisers were it not for the appalling safety shortcuts they took in ammunition handling.