This was very interesting that I learned from watching this historical special called God vs. Satan. What I found so eye opening was in the book of revelation at the time for the Apoclypse which would lead to Armagedon (Good vs. Evil) and then the Day of Judgement for mankind.
Historians say that how it begins are the constant blood shed, natural disasters and wars. that constantly occur without notice. This is how the state of our world is in now, but the true sign according to the Book Of Revelation is the coming of the four rides and four different signifining approaching doom. A red horse means, war, a black means death, a green means famine and the white horse represented the coming of a notorious approach.

Then there are the seven seals where the first four seals respresented the 4 horses with riders, the fifth seal was hail I believe and the other two I can't recall except I remember the show saying that one of the seals had to do with the justice or the vengence of all those who suffered and were killed for their beliefs, but there were signs of approaching doom. What would happpen before the angels were sent down with their trumpets for the brink of annhilation, the good and the faithful would vanish and enter heaven where as the others would be tested and live a mortal life of the worst possible. Satan would have two demons that take on the form of monsters. but one of them would become one the world's most cruelest nemisis such as Hitler etc. The two demons were called the Anti Christ and the False Prophet. The  false prophet would be a demon disguised as a human who would teach others about turning away from God and speak lies hoping to persuade and trick people into joining Satan. The Anti Christ would be a leader of Satan's armies that aquire more souls. He then would attack the City of Jersrusalm where Jesus would come back to earth and fight as a divine warrior. He was depicted with the weapon of spreding the words of Christ, but he held a sword in his mouth so he was now ready to take on the evil.

In the end, after the war is fought Satan loses and his two evil leaders the anit christ and false prophet are cast into the lake of fire meaning Hell where as he is chained and thrown into an Abysss for a 1,000 years where Jesus the Messiah and rules the Earth as a earthly king for 1,000 years and the earth becomes a Utopia; however, Lucifer is given another chance to where he resorts back to his true evil nature and longing for power and begins to infuence mankind again and gets more souls. Lucifer is finally thrown into the Lake of Sulfur (fire) to where he burns day and night for enternity. God then decides before blowing up the earth and universe and creating a new one, that the remainng surviros of this would then face the Day of Judgement of where there souls will spend enternity.

My point being of all this is based on interprepertation, but I believe it will happen, but no one knows when and if it will happen in our life time.