What's your definition of "out-Bitcoin"? Is it a faster block confirmation time? Because if that's the case, I'm sure there are tons of alts faster than Bitcoin. They obviously have weak security relative to Bitcoin, and I doubt a revolutionary blockchain idea can solve that because you need the community for it. Looking at how people see AI (the average joe, at least), it can be a turn-off instead.

Beside, what's the worst thing that could happen if they can design one? I doubt Bitcoin will simply die because miners move to min the new coins, because it's very likely the new one will be published and maintained by a centralized entity.