That is what I would say, too. But I partially disagree with your last sentence in so far that it feels like this topic might once again not come to an end. I tend to believe the transfer to Real Madrid will become reality, but there is a good bit of doubt left because Al Khelaifi might again approach him and put a bag of cash on the table that Mbappe feels once again he can't refuse.
Or I could be completely wrong and the contracts are more or less written by now. But given how all the drama enfolded around Mbappe in the past, I would rather wait and see

A very right choice, I think speculation about Mbappe future is the most difficult to predict compared to the others. PSG is financially very stable, so it is able to offer a large salary and bonuses to Mbappe. Real Madrid also has the same thing as PSG, but is more promising when it comes to the Champions League trophy. After seeing various rumors about Mbappe move last summer, it is better to wait and see how the Mbappe transfer saga ends.
For now, PSG through the cool hands of Luis Enrique, must maximize Mbappe in every competition they participate in. It must be admitted, without Mbappe PSG cannot talk much, either in Ligue 1 or the European Champions League.
Although I believe that a failure to reach the next stage in the Champions League might put this topic to rest once and for all because Mbappe may feel the need to one day win that title and it is simply not possible with PSG. Losing 4-1 against Newcastle, and this is not to disrespect Newcastle whatsoever, is not worthy of a Champions League title contender at all. They can lose a game 2-1 or maybe get a late counter attack goal against them and it ends 2-0, but this result is disappointing and not to forget they have all these super players on board.