I think about this as well to be honest. Its just that it would have to do everything bitcoin does, and do it better. I've learned in podcasts that for something new to take over, it can't just be marginally better, but has to be significantly better to get people to switch. The ecosystem for bitcoin is immense at this point, but what I don't like is that too many people are fighting about the direction it can go, so it isn't finished. I hate that some people think the blockchain is for anyone to use as long as the transactions are valid. This to me is a major bug. Saddling nodes with storing useless data forever, like Jpegs, is an exploitation. Further, the centralization of mining is also worrying.BTC has the most compelling narrative but there is always another animal spirit coin up & coming.
So I can envision a fork perhaps that solves all of this in the future when these attack vectors are better understood and can be counteracted. It would likely be a hard fork because the rules of consensus would have to change, but I can certainly see it happening. I think the best blockchain should have no ability to fight about anything. That is at least what gold has going for it. If the gold is verified to be pure, there is no argument about what it is.
