About the only advantage would be recompiling with a better compiler and recreating the kickstart and workbench from that, and considering quite a bit is assembler there won't be much to gain. Maybe an '060 build...
But we already have specific libraries reimplemented better (Cosmos, etc) with Kickstart images updated. So again, the gains aren't going to be great.
Otherwise, it's zero use to AROS 68k devs, unless they want legal problems, and ditto elsewhere.
