Since Real Madrid will not spend 100M€ for Harry Kane and Tottenham will not leave Harry Kane for less than €100 million, it is certain that Real Madrid cannot sign Harry Kane this season. If the two parties contribute a little, there is a possibility of this agreement being successful, but since the two parties will not come to an agreement, this agreement may end up increasing the wait.
Real Madrid have another French star in their sights. They certainly won't hesitate to spend money on Mbappe. Nasser Al-Khelaifi and Real Madrid hope to negotiate and Real Madrid will come to a decision.
Harry Kane's transfer is indeed the most complicated compared to the others because Spurs are sometimes very annoying for clubs who want to buy their players or even the players themselves are also annoyed with Spurs' policy of selling their players. Therefore I think Harry Kane's transfer to Real Madrid is unlikely to be successful as long as Spurs still want a high fee.
Apart from that, the news about Mbappe is still quite hot until now and Real Madrid doesn't seem to want to push too hard to get Mbappe because they also don't want to be in a hurry. I think Real Madrid will start negotiating with Mbappe again when his contract is finished with PSG and for now there will probably only be rumors without any endless clarity.