Until now I have not read the news that Real Madrid wants to bring in Sergio Ramos again. This seems very unlikely to happen to a club like Real Madrid because we know that Real Madrid is not a team that recruits old players. It is true that currently Real Madrid's defense doesn't have many options after Nacho left, but that doesn't mean that losing Nacho will make Real Madrid panic and then Sergio Ramos will come because that is very unlikely to happen.
That's why we sometimes have to think logically in everything, including recruiting players, because a team like Real Madrid is a big team that has more money and more trophies to date. Of course, it is still possible for the team to make good steps in recruiting other defenders whose age can be younger and whose talent must also be good rather than having to call back old players who are no longer young. And I also think that Real Madrid will not do that because currently there are many options that Real Madrid can still look at if they are just defensive players.