Jesus uses analogy of a fig tree when talking about this, and He says that generation that sees this restoration take place with Jewish people will not pass away until He comes back for 2nd time. There thus is a very good chance that we may witness return of Jesus to our earth for His second coming in our lifetime. I don't know what time frame is when Jesus uses word generation. It could be 100 years or maybe a little less. If so, His second coming could occur anytime between now and year 2048.

I am sure this event will be televised throughout whole world due to conceit and arrogance of Antichrist. He will want whole world to know what he has just done. Think about this. The devil has always wanted to be like God, to have His throne for his own. Now he will get his one and only chance on earth to do this. The Antichrist will be under guidance and influence of Satan. Satan, through Antichrist, will now be able to seat himself in God’s Holy Temple for next three and half years - and from that position, start greatest mass slaughter of Jews and Christians that world has ever seen. He will literally kill two thirds of Jewish people. Believe it or not, this persecution will be worse than German holocaust where 6 million Jews were killed. More on this under its own caption below.

Bottom line - Jewish Temple has to be rebuilt so above event with Antichrist can take place. It will also serve as a main key event for rest of world to key in on as it will literally tell us exactly how much time we will still have left before Jesus comes back for His second coming - 42 months!!