i new it. there is a simple one word answer to the question but people will nevetheless fill this thread with endless phantasizing about a possible ppc in fpga, no matter that it would not help anything, because mos and os4 would have to be explicitely ported to that combination of hardware, which is another "no" everybody has forgotten to ask about.
If put you a whole PowerUP card on an FPGA then OS4.x and older versions of MorphOS would run on it. Still agree that it would be a waste of time and resources.