Humankind on the brink of extinction: A journey into the future

What would you ask if you came across a time traveler? What's the future of humankind? Is it going to be an apocalyptic world? Is it a dystopian future lurking for humankind? It would be great to know what the future will bring. How will the planet Earth end? Is there any hope for humankind? Recent conflicts between neighboring countries have raised red flags of a possible world war. Is it going to happen for sure? Can time travelers help us change our fate?