Pre-Tribulational Rapture... Seven year Dispensationalism... Etc.
Tis my considered opinion that, just as the Jewish Pharisees and Saducees and priests and scribes couldnt recognize Jesus-Messiah way back when, so our prophecy-interpreting religious professionals and their hopeful acolytes wont have a ghost of a clue if he returns during their time.
Right on! He will come as a thief!