We need some space invaders to come and fuck our shit up. An outside threat is the only thing that's going to unite humanity, otherwise people are going to still be greedy, selfish, stinking, shitting, bags of meat. It's not really our fault I guess, our genes are kind of responsible for all of that. But if aliens come and we either kick their space faring asses, get obliterated ourselves, or are enslaved to toil in the Xcnsiv mines for the rest of our lives, I think humanity would have to pull together and stop shitting on each other at least for a couple decades.
Every generation thinks they're on the verge of something. Everyone thinks that the apocalypse is right around the corner, or impending doom is just a stones throw away. Welp, we're still here and society hasn't changed all that much. It would be great to see something awesome happen, but I'm partially cynical and mostly apathetic about any great leaps and bounds in human nature.