Here's a question, could some sort of FPGA based USB 3 or PCI expansion board be created to substitute for the lack of the classic chip set on future MorphOS hardware (in theory).
If possible, AROS and OS 4 could benefit from this as well.
This was discussed back in 2000'ish. I seem to remember the original Escena AmigaOne design included a connection to the A1200 motherboard for just this purpose - access to the custom chips.
I can't see any benefit it would hold now, emulation is so much easier and probably more compatible.