Back in 2000 during the pre-Christmas 'visits season' at Mount Pleasant, some MP turned up to wander about, look at the penguins, visit the odd radar site etc. At some dinner, the topic of the future carriers came up and he was interested in our opinions. We tried to make him realise that a well-designed 'conventional' carrier could operate V/STOL aircraft and conventional aircraft, but a carrier without catapults and arrestor cables could only operate V/STOL....
If the QE2 class had been built with an angled deck and a STO ski jump, the RN could have operated a mix of F-35B and F-35C as well as drones. But to retrofit some launch and recovery system only for drones will be a very expensive programme, especially as the ships still won't be able to cross-deck with F/A-18, F-35C etc......