Jesus came to end darkness forever and He will only return when light takes over. Remember John chapter number 1: 5 says and the Life that was the light of men shined in darkness and darkness could not comprehend it , could not absorb it. 

Jesus as the head of the church has done his part and has declared it is finished. the second coming will only be happening on the condition that God's Glory covers the whole earth as the waters covers the sea according to Habakkuk 2:14 . 

That means plaques/ sickness, terrorism on the earth will not be the reason the world will end but light the gospel covering everywhere is the Major sign of the end. 

Read Matthew 24 verse number 14 . "This good news of the kingdom [the gospel] will be preached throughout the whole world as a testimony to all the nations, and then the end [of the age] will come."

So from the above scripture it is clear that what will course the end to come is that the Gospel which is good news of Christ is preached to the ends of the earth. 

We have seen people working in fear and trebling because of the alarming circumstances sorrounding the world today and some people even predicting world end but am clear on the truth that darkness will not course the end but light. 

At the end Satan will not be the headline but the church, for every mountain standing before Zoin shall be made Law. it is time to walk in the victory of what Jesus has done. At the end it will be light everywhere and not darkness.