I would say something quantum resistant, but even that exists already. I don't think the problem is so much the coin, but rather the usecase. I see most businesses and governments launching and running their own chains in the future. So rather than launching a coin, launching a business that helped people launch their own chains would be the way.
More like a launchpad right ? That’s another solid perspective, an infrastructure that supports others launching their coins could become more impactful than creating another token in the midst of the thousands of coins already in circulation.