It has a couple of meanings to me. First, on the surface (literally), the Dome of the Rock (El Aska Mosque) stands on the site of the original temple. It is one of the longest standing, intact Muslim buildings in the world. To rebuild the temple would mean that the El Aska Mosque must be destroyed. I am an advocate of that, and of every other Christian and Hebrew place of worship that Muslims have built on top. Second, it has more subtle meaning. For the second coming of Christ to occur, the temple needs to be measured. In the Rev. 11:1-2, “Then I was given a measuring rod like a staff, and I was told: ‘Rise and measure the temple of God and the altar and those who worship there, 2: but do not measure the court outside the temple; leave that out, for it is given over to the nations, and they will trample over the holy city for forty-two months.’”
So, in a way, you are right. Bring it on Anti-Christ. You can guess what I think about Islam - the religion of peace.