Choosing the QE the way it is would pave the way for F-35B into the fleet. But I think the IN wants a CATOBAR in order to use other types of fixed wing aircraft, which would make it very hard for the F-35 to get in.
Anyway, LM has decided to not join the MRCBF contest. So that's that.
No. If F 35 is deemed to be the best lead fighter the catobar will be dropped. The ship will be designed around the lead fighter.