There is no good evidence in support of that. If all humans would die, that would not be the end of the world, that would only be the end of all humans and if the earth would explode that would not be the end of the world that would only be the end of earth. There is no good evidence that the end of humans, the earth or the world is near. If you are extremely religious you might think something as silly as the end of the world being near, but there is no rational reason to believe such a ridiculous notion. The world has trillion billion years left, the earth has at least 1 billion years left and for humans. Not sure because of war and the monetary system but i would say at least 1000 years or even millions or even billions of years if we stop using the monetary system at some point in the future.
However, there is nothing that proves God isn't real. Since God is real and created the universe, He did it for a purpose. Mankind is the top creature in the whole universe - just go along with this mankind idea, since all people seem to think it.
If humanity died out, there would be no need for the universe any longer - God's view. So, why not get rid of it? I mean, what else would there be? Create people all over again, just to go through the whole process of watching them destroy themselves again?
Sounds like you have a religion of "God doesn't exist." Since all of nature shows that He does, and since nobody knows how many years the world has left (because even in science we don't know for a fact that there isn't a universe-sized black hole that is "eating" the whole universe, and is propagated itself a little slower than the speed of light so that we can't see it coming), everything you say is speculation. This makes it a religion for you.
