The cool thing about Git is that the underpinnings ultimately boil down to a key-value data store.

I'm not an expert on these innerworkings, but in theory there's nothing stopping someone from creating a new UI that maintains most or all of the same strengths, except that everyone already uses and is used to the current way.

I suspect if you came out with "SuperVCS" that was ultimately just a new UI on Git you'd have more success than releasing the exact same project as some kind of Git enhancement.