Bro Military Deals are hard business.
A lot happens between Pakistan is interested in, Pakistan has been offered, Pakistan is in negotiations, Pakistan has signed the deal, Pakistan has started to acquire and Pakistan has received all deliveries.
For example, we wanted to replace our Type21 frigates with American OHPs but acquired only one vessel instead of 4-6. Similarly we eyed Royal Navy's Duke class frigates for Type21 replacement, but deal didn't move ahead. Now finally, after a consistent struggle of a decade, Chinese Type54 are going to replace them eventually.
You can take example of eight F16 Blk52 which US cleared for export for PAF in era of AVM Sohail Awan but were blocked by Congress. Similarly AH1Z case is full of ripples, Chinese Z10 and Turkish T129 deals have their own stories.
Such revelations are a indicator of something which has potential of turning into a physical possibility in future. And in numerous of cases, it don't happen.