Yeah but if the baseline Raphael is 8c, it might be closer to the 5600x launch price. Maybe. Really depends on how far up the product stack they go with different SKUs.
I don't think they want to make the Ryzen 5 a full Zen 4 chiplet.
In keeping in this thread, maybe they could do Zen 4 + Zen 3. That doesn't seem realistic either so I am not sure.