ED sacrificed Belsimtek's F4 project to launch F16 and Mi24 earlier. I agree with your estimation on F-4 module market. No one would neglect vietnam war-era market. I think F4 will be back on track after F18 leave EA stage since ED still hold F4 license. I don't think ED could find any jet project better than F4 and other candidate Heatblur will focus on A-6 attacker.
Unfortunately, Razbam drew a too big unclear roadmap covering too many attractive planes. Considering their relationship with French Air Force and Dassault, I guess Razbam got the license but has been in short of flight dynamics experts and programmer for cockpit since they are all busy with F-15E project and updating Mirage 2000c. So they could not start the Mirage III project though they hired a 3D modeller in Argentina to work on Mirage III external model. I had a look on that guy's webpage. He seemed still working on Mirage III external model and even has a Mirage III 3D image with camo.
I love the Razbam's mirage 2000c module. I think they are smart guys but need some professional guidance and supervision on project management and planning.
Hopefully, Razbam could cooperate with other studio to start Mirage III as early as possible. They said they would finish Sea Harrier FRS.1 and IA-58 attacker before Mirage III.
If they keep working on current pace, I don't think I can fly their Mirage III module before 2031.