Did wonder if there were still any F14s about. I'm pretty certain I read something that it would be used for CAS and therefore a direct replacement for the A10 (Harriers also have the same role).
Just read in the Times today that MoD does not reckon the JSF will be ready for the new carriers in 2014. Personally, I doubt the carriers will be ready by then either, so it should cancel out nicely!
Also read that wiki link a little bit. The last entry sounded interesting. Energy directed weapons a possibility, like soild state lasers!