It's very possible. We will have to wait and see. See also here: https://asktherav.com/is-it-ok-to-make-heated-floors-in-the-beis-hamikdosh-when-moshiach-comes-so-that-the-kohanim-dont-get-cold-feet ובנדו״ד יש להוסיף דעת היראים שעו, שבתלוש ליכא משום הכל בכתב. (וכ״כ בשו״ת…
