Harrier developments

In Tony Buttler’s ‘British Secret Projects, Jet Bombers since 1949’, there is a line in the section on the HS.1184 (Harrier developments) which states ‘No interest in the HS.1184 was forthcoming from the UK Government but it did lay the ground for the AV-16. The policy was that no more Harriers could be ordered because the Anglo-French Jaguar was now under way and would fulfil all future requirements’.

What if the Jaguar development had never been started, could it be assumed extra Harriers or developments of Harrier would have been ordered or would it have been a case of nothing ordered?