That person will rather be regarded as Refurbished Satoshi because I know it will definitely be building on the existing protocol that bitcoin is on and this is something satoshi doesn’t also rule out.
Maybe you are outdated but there’s a lot of blockchain existing that faster than Bitcoin. I believe most of new blockchain nowadays is much faster than Bitcoin in terms of ToS since they use PoS and other protocol.
Yes POS is faster than POW because of the computational power needed to solve the puzzle of the block but that also makes up with its security. Also POS dependent coins aren’t even the fastest. We have something like Ripple which uses neither of both and is faster than them, but at the detriment of what? Centralization.