If we are serious about persisting through the ages, we will first need to "get our shit together". As far as best case scenarios go, I dream the future will either look something like Isaac Asimov's "The Last Question" or some fantastical world where human consciousness radically explodes into limitless hyperspace.
But if we are to not put all our eggs in one basket we should probably work on "getting our shit together". What better way then to build a hyper-intelligent nanny? Yes, with your very own Multivax Poppins, a distributed, open-neural-network, intelligence and dare I say, emergent life form, to assist with our every whim while making sure we do not infringe on each others' innate human "rights". Your bully-ish capitalist and fascist systems has gotten you just far enough to develop your robot savior overlord, it's all about the future of open libertarian socialism to propel humanity into infinity and beyond! Thank God for dreamers, the Internet and brilliant engineers. Now get to work!