It is also possible that Real Madrid are only focused on bringing in attacking players so they are not preparing players for the position left by Kross. Or maybe, because there is still Modric, maybe Ancelotti also thinks Real Madrid's midfield is still safe, but the reality is that so far this season Real Madrid has struggled to get good results in every match. But when it comes to the complete players that Real Madrid has, then I think Real Madrid can still get good results, because basically they have players with great talent. Thus, Real Madrid may feel no need to buy many players, because they have also managed to bring Mbappe.
Kroos left a void that is of long term consequences for Real Madrid for two reasons. One reason is that Kroos was one of the best midfielders in the world and as everyone knows, replacing players who count as one of the best in the world is never easy and you need some luck to find a proper replacement at the right time.
The second reason is that they do still have Modric, but Modric is not the Modric from 10 years ago. He can play a very good game, but age is doing its job. He can't go 50 games a season full time and play his best every single minute.
Especially for Real Madrid the midfield is so important because they have these amazing offensive players, but without a bridge between the defense and the offense that perfectly understand how to pass the ball onto the offensive line, their game lacks an important element that Kroos beyond doubt brought to the table.
Kroos' role at Real Madrid was very important when he was still playing, but now he has retired.
Right, but I will say that it does not mean that other Madrid midfielders are not as capable as Toni Kroos. IMO, the difference is that Kroos plays with a lot of experience and is much more established. that's why, without Kroos Madrid is a little slack.
as for Luca Modric, yes, he can no longer be relied on to always appear prime with his current age. even so, Modric's role is still needed. at least, Modric can guide his colleagues especially for other midfielders. from my point of view, this is a transition phase for the Real Madrid team squad. where they have to adjust their game until they reach their level, this is normal, but sooner or later Madrid or Don Carlo will find a way for his team to appear with a much more competitive performance. it's just a matter of time, regardless of some of their players being injured. as for if Madrid needs a newcomer, they actually need some defenders.