I would not hold my breath waiting for the Jews to build a Temple of God, something like that could only happen if God Himself wanted it to happen. Trying to build a Temple to offer animal sacrifices would be the ultimate rejection of Jesus as the Messiah, hardly think that God would back that one. About the Antichrist, the Islamic religion seems to be taking over the world, so maybe the Antichrist could be Islamic(I really don't know).