Thanx Alexh for your reply
Of course it could (and should) be a smaller board with break out cables, no need to go for the full size PCB which would be scarcely populated. And it would also leave room inside for various mods.
But AGA chipset and FPGA are a real pile of a job...
Anyway, it IS possible ? There are no "no way, no how" problems that would prevent it from ever being made ? Like trying to fit an Intel CPU in MC68K socket and asking it to work
I agree that for the time being we may not need it. If my A1200 breaks down I can get a second hand one for the price much less then the new replacement mobo.
But their number is going down, not up. And this may be something to consider in the coming years.