I'd be astonished but pleasantly surprised if Trust-me-Tone and co. had the balls to pull the plug on Dave and re-assert some British self-determination. Paying such a colossal amount of money to not actually "own" ones jets, nor to be able to hang what one will from them, seems ridiculous and doing so will be yet another meek international surrender of sovereignty.
Would certainly be interesting, let the Saudis buy Rafale, navalise all their prospective Typhoons and still provide a potential boost for UK contractors.
Can't see it.
Of course, with Greedy Gordon effectively running the country now, cancelling Dave might just prove an excuse to shave another couple of billion from the defence budget rather than appropriate reinvestment in CVF.