Instead of designing a whole new motherboard, it would be better to just design a 030 accelerator for the A500. That way they could sell it for a much more reasonable cost and far more people would be willing to buy it.
No reason to do a whole new motherboard if the new motherboard doesn't offer you any benefit over the old motherboard + an accelerator.
Maybe the motherboard is made because the 68000 is 16 bit and a 68030 is 32 bit ?!
