This is almost exactly what the plan was, until C= went out of business:
https://en.wikipedia.org/wiki/Amiga_Hombre_chipset
It was going to be HP PA-RISC based and have an AGA Amiga SoC, including a 68k core.
How much of Hombre is myth-and-legend? Given how little progress with made with OCS->ECS->AGA, it seems unlikely they could even have built an Amiga SoC, nevermind designed a new 64-bit chipset.
How much of Hombre is myth-and-legend? Given how little progress with made with OCS->ECS->AGA, it seems unlikely they could even have built an Amiga SoC, nevermind designed a new 64-bit chipset.