I see Donald Trump is now saying he'll move the US Embassy to Jerusalem (a standard and never fulfilled commitment from all Republican candidates and many Democratic ones.) Honestly, from Trump I'd expect nothing less than rebuilding the Temple. Trump Temple. It could be public private partnership. Luxury money changing tables, holy of holies, possibly holy of holy of holies just to punch it up a bit.
The last rebuilder of the Temple was Herod, a grandchild of Idumean forced converts to Judaism, but a Trump like figure in his own way, a big builder, larger than life, a fair amount of family drama. He tore down the old Temple and rebuilt it in a really classy way for the ages.
Alas, it was torn down a few decades later.