Yep. I don't mean to say that only the ZDK03s will be there for maritime support. In fact, No. 5 (Block-52+) is in Southern Air Command and there have been Facebook clips of those pilots wearing life-support vests. So there will be Erieye AEW&C to help the SAC F-16s and JF-17s.
However, I think the ZDK03 will work in close unison with the PN's assets, as was originally intended with the Hawkeye 2000. But the Hawkeye 2000 was intended for a time when the PN wanted 6 OHPs, Type 214s and Harpoon-armed aviation and fast-attack assets.
Today, the ZDK03 makes more sense considering how many Chinese systems and weapons the PN is intended (and if not Chinese, then 'local' stuff that Pakistan won't be allowed to mate with U.S. hardware or systems).