If i am not mistaking according to the same prophecies the world was supposed to end like twice allready.
According to other speculation the world was supposed to end in 2000 (Y2K).
If you look at the prophecies they mean only what you want them to mean. Take this picture that was supposed to predict 9/11 for example.
The three bird like images in the wheel are supposed to symbolize the three planes and the city in the other spoke is supposed to represent NYC. There is more i don't remember. Also Nostradamus said
"In the City of God there will be a great thunder, Two brothers torn apart by Chaos, while the fortress endures, the great leader will succumb",
The third big war will begin when the big city is burning"
Obviously NYC is the city of god (lol?) and the two brothers are the twin towers (lol again).
Now lets step back from both of these. First the picture. Why is their only three planes when in fact 4 were involved? Also their is at LEAST 25 other things going on in the picture that are unrelated to anything dealing with 9/11 but we choose to focus on one aspect of the picture that has meaning because someone "primed" aka told you to. Pictures can be interpreted a thousand different ways but if someone leads you to view it one way thats how youll view it always (unless shown otherwise). You have been manipulated to see what others want you to see. Here is a great example. What do you see?
A man holding a naked woman from behind? You have been primed to see this because of the role sex plays in society today. Did you know most kids under the age of 9 (i believe it was) only see dolphins? They have not been influenced by sex as much and therefore do not see the man and the woman.
Now to the phrase. Wouldn't you think most agree the Vatican is the city of God? What do they mean by thunder? IF they mean the planes shouldn't it have said two great thunders? (four if you don't count the two outside the "city of god" Wouldn't you say the towers merged with each other as they collapsed rather then have been torn apart? Wouldn't you have called the towers sisters instead? Did "the great leader" Bush Succomb (he stayed in office if my memory serves

)? Was their a third big war? As far as big wars i would say WW1 and WW2 were pretty big and the Iraq war was nothing compared to many others. Did i miss WW3 or something?
Point is the world is not going to end. The media is running out of stuff to talk about. When they do they make up news to influence people who are uneducated or cant think for themselves. These people become frightened, do something which becomes more "news". Or something of the sort.