Earlier armored cruisers lead to dreadnought light cruisers

How would larger British armoured and protected cruisers built in 1906 affect the 1910 Town class?

Slightly larger and more powerful light cruisers, probably retaining their historical guns but carrying many of them in twin mounts.

The proposed change could make the 1910 Town class slightly larger and more powerful. British armoured cruisers are discussed as platforms on which gun arrangements were tried before Dreadnought, making a cruiser response plausible. The suggested Towns would probably retain their historical guns but carry many of them in twin mounts resembling later destroyer mountings. The proposal is called a dreadnought light cruiser without establishing a particular larger gun calibre. Britain would probably build about the same number of ships.