Googling reveals
The first six of potentially twelve Type 45 Destroyers have been ordered by the MoD. The first is due to enter service in 2007 and will be named HMS Daring, the second and third are to be HMS Dauntless and Diamond respectively and these should be in service by 2009. The successor three ships, that will be joining the Fleet at intervals of about six months after HMS Diamond, are to be named HMS Duncan, Dragon and Defender.
As for the remaining 6 names, cannot easily (or quickly) find them, but then they probably will not be required anyway ('
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