The temples John wrote about are the heavenly one, which he calls just that, the millenial one he was told to measure, & the one the Jews will build in Jerusalem, where the AOD will occur.
Do a little research, & you'll see that the Jews have the construction materials & the instruments for use in a new temple ready. And also, they're breeding animals for use in temple rites, having bred several red heifers a few years back, among others. AND IN 2018, THEY BUILT & CONSECRATED AN ALTAR TO BE USED IN THAT TEMPLE WHEN BUILT ! !
Now, I'm not trying to be smart-aleck, but, as a Christian, I believe reality & history are shaped by Scripture, & reality is, the Jews will build a new temple in J when the time is right. They'll build it in just a few days with modern equipment, pre-fabbed parts, etc.