This is quite interesting, especially in the way you have linked the numerology and assigned possibilities to them.
One thing is clear, nothing happens by chance in the universe. The truth is that the entirety of existence is founded on the mathematical exactitude of algebra and geometry. It is man's ignorance that thinks that nature simply unfolds in a haphazard manner. No! Nature, of which we all are a veritable part, is deeply birthed and seated in the precision science of creation and eternity.
As for whether the world will come to an end, no sir. The process of evolution will simply continue and everything will change and keep changing. Come to think of it, aren't we, man and nature, constantly in a state of flux?
Believe me, everything is exactly as it should be. Come 11/11/2018, the sun will rise and set as usual, and many things will happen, and as usual, the mind will assign it dimension.
Thank you for sensitizing us ahead. I will be on the watchout.