Did you see the specs? He went from a Commodore to a NUMA-scale machine that he will implement on a mix of Xilinx and ICE FPGA's. Not saying he can't do some fraction of it but those are some heavy specs.
After reading it again, you're all quite right, I was wrong, it's an April Fool's joke. Still, the principal of a computer on an ICE FPGA is a good one, even if it's not currently being pursued by this guy.
I'd like to try my hand at building my own iCE40-based motherboard for the Kestrel some day, but something like that would be at least two to three years into the future minimum, especially at my current rate of progress working solo. It's best to not have any expectations.