It could. But with what cryptocurrency?

Who knows) May be it isn't created yet or so unpopular we never heard about it or may be it would be Ripple
haha, keep on dreaming. Doge coin has a better chance of being it than a centralized shitcoin such as Ripple

as for changes that you are talking about above, it is not hard at all but the problem is that the "change" needs to be actually good and not controversial with lots of downsides and security issues.
if you have a proposal we are open to hearing it! but it seems like you only have imagination.