Are our physical bodies the third temple? Will the antichrist stand in the temple and declare himself God? I could see technology leading to complete privacy invasion, including our bodies.
Or will there be an actual brick and mortar "Temple"? What say you?
I've considered the first idea a distinct possibility, but it places too much emphasis on the individual rather than the church. We aren't saved simply for ourselves, but as members of the body of Christ, living stones in His spiritual temple. This was the reason that the Westminster confession pointed a condemning finger at the pope.
However, there remains a movement in Israel to build a new temple. Descendants of Aaron, Kahane (Cohens) are being identified to serve. Temple objects are being crafted (lamp stand, altars, etc.) Cattle are being searched for a red heifer. Funds are being collected for construction. The one point of contention and block to construction is the desire to build on the original location, now occupied by a mosque and one of the holiest shrines of Islam.
Given that the church is divided into thousands of independent congregations, it doesn't seem likely that it would ever be united under the authority of one man and that man be clever enough to deceive everyone in the church with false testimony.
By the way, every humanist that rejects the existence of God and considers himself the master of his own destiny, is already seated on the throne of God in His heart. It is the natural condition of man without God to worship the creation rather than the creator. The ultimate expression of such apostasy is self worship.