I'd like to see some sort of super upgrade board, probably for the CPU slot. It would have one really big or maybe two smaller FPGAs. These would replace a 68060 CPU- or if better for software compatibility, implement a really fast 32bit 68K. There would also be a boatload of fastram. The FPGAs would also hold a RTG display, 16bit sound, ethernet, and IDE or SATA interface. .... easy, eh? ;-)