I realized something... One of two things, I believe, may happen:
1) It may be possible that CBS schedules make-good airings once the Friday episode of the latest batch of taped episodes was already labeled and scheduled. Then they may schedule a make-good for the following Monday, and then the next taped episode after a Friday episode is taped would be a Tuesday episode. CBS probably has a shelf in the TPIR tape room that is specifically for make-goods, and those tapes are put there so that they don't get misplaced and it can air as newly scheduled.
2) It may be possible that CBS has the taping and airdates already planned a few months or many weeks in advance. CBS may have episode numbers on some sort of spreadsheet or printout and their corresponding scheduled airdates may already be planned as late as April or May. If so, they may schedule today's originally scheduled airing for the first available Monday that is not part of the current plan when they update. Sometimes programs and when their episodes air are planned months in advance, if I am not mistaken. If they have the airdates planned out through the Season 39 finale, then today's scheduled episode will become the true season finale come June or the very beginning of July.
I think what happens when summer reruns occur, when they schedule summer reruns in advance (as early as late May, usually) they have a set order of what episode types air first. Full make-goods - episodes that were fully preempted as originally scheduled - may be top priority and are first in line to air during what would normally be the start of the summer rerun period, then they go to the true rebroadcasts. Correct me if I'm wrong.
That said, I am putting my money on a make-good being scheduled for late-April or May at the earliest.