Saab 2000 is the name of the plane, the system on it is the eriye, similarly Y8600F is the name of the aircraft and ZDK-03 is the name of the system on it.
It may be feasible to swap the Radar system on the Y8600F from the rotating PESA to a fixed dish AESA in the future, but currently both these radars are very good and ample for our needs. Pakistan has a rather large AWACS fleet of 12, so range and uptime shouldn’t be that big of a problem.
It will likely not be feasible to swap the Erieyes on to a jet powered plane because that would mean converting and entirely new aircraft into an AWACS system after removing the system from an already configured aircraft. The Saab-2000 is a good enough platform for now. (Or if you meant turn the Saabs themselves into jet powered aircraft, I don’t think that’s possible without redesigning the entire thing)
Though going into the next decade, Pakistan will need to start looking into replacing turboprop AWACS with jet powered ones. The navy is already doing it with its Sea Sultan systems to replace P3C Orions.