ROSE-1 are upgraded for air combat not strike.
Two major Qs there:
1. why would you need more F-16 ?
2. Mirage replacement could be EU but how will you install Mirage weaponry on a European fighter like Ra'ad, H2 and H4 etc? Will EU come with its full weapon compliment of SOM, ALCM, AShM etc ?
and the role for F-16s that you have in mind is... ?
F-16 will never carry Ra'ad, H2 and H4. The only effective AGM it carries is AGM65. JF-17 has no effective SOW or AGM, only ARM and AShM.
which aircraft will carry Mirage weaponry effectively ?
This forum needs to think on different lines every now and then. Its not the aircraft only, but the electronics/weapon package it brings with itself to give results. R&D is a must.
Get A/B models cheaply and upgrade them to Block 52+ standard but that requires lots of negotiation with USA.