Hear me out. I think dedicated fighter jammer versions are luxuries that large air forces like USAF and PLAAF can afford and make sense in terms of doctrine.
Now we've always been pretty sure that PAF has wanted some kind of strike option. And this goes to
@Oscar 's point.
For our airspace the bizjet solution seems to be working. For strike, I think part of the reason PAF is looking at a twin-engined big boy for strike is onboard EW capabilities. Our strikey boys will need to be neem EW boys too. We haven't been able to build a proper strike element, so building a dedicated EW for strike seems far fetched. Just my opinion.