@Oscar @messiach when it comes to Block-III, which do you think is a better approach to the single seater?
One option is to work with the existing JF-17 Block-I/II single seat airframe, but with the improvements from the JF-17B. The other option is to emulate the MiG-29M/M2 by using the twin-seat airframe, but omitting the rear seat by extending the spine into it. I suspect that repurposing the JF-17B airframe into a single seater would be quicker and more affordable than trying to rework the single seat airframe. Moreover, by using the JF-17B as the basis, you could also leverage the new (and seemingly more visibility-friendly) canopy design.
See the image below:
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