A question that I can ask is, is it worth maintaining that capability?I noticed that the JDAM-type weapons don't use terminal-stage seekers. As you said, the main point here is to control cost and deploy in numbers.
Once you talk about terminal-stage control, you get into more niche munitions -- like H-4, JSOW, etc. In this case, you're looking at both adding a terminal stage seeker and using different warhead types (like tandem, penetrator, or even sub-munition dispensers).
If anything, we can't mix the role of the H2/H4 with that of the IREK. The IREK is our JDAM-line. We will still need a true successor to the H2/H4 that carries the specific benefits of those SOWs to the future.
I guess the future direction would be a JSOW-type weapon.
Is it worth having a dedicated jet (a Mirage or a future heavy) carrying a single weapon, or can I get the job done by launching 4 REK-III's from 2 JF-17s? The PAF might be asking what I just asked.
The capability gap that we have is hitting a large number of targets at 300-400 km to hit IAF bases. If wishes were horses I'd want a REK-IV with a 350 km range that is only marginally more expensive and heavier than the REK-III. We can't afford to launch hundreds of Ra'ads at India, we are not the USA.