I don't know how and when the Temple will be rebuilt, it may by the result of a peace treaty, but I would suspect it will be rebuilt as the result of a WMD war between Israel and its neighbors: In such a case, Israel will suffer great loss but will win, then the Jews will expell the Muslims from the land and rebuild the Temple. (Such a path to the rebuilding of the Temple is only a guess on my, but it is plausible.) The expelling of Muslims from the Holy Land and the rebuilding of the Temple will lead to worldwide upheaval, thus setting the stage for the new world order in which the AntiChrist will propose a peace treaty ending the Israeli/Muslim conflict. Such a scenario is possible within the next 10 years, certainly within the next 50 years.
So it is likely the Anti-Christ is a member of an international institution, such as the United Nations Security Council? Or could (s)he be a nobody who just posts an idea for peace on the uselectionatlas forum?
