It seems that Carlo Ancelotti has prepared for this. Therefore Carlo Ancelotti did not recruit in the winter market last before and chose to recruit at the end of this season when the summer market opened, even though if Real Madrid recruited players in the transfer market in January before. Real Madrid could face match the Champions League has calmed down a bit because its strength has increased, so Real Madrid's performance can be more optimal, but I think Carlo Ancelotti doesn't recruit players because he believes in the players he has and remains strong even though he doesn't add to the squad he needs.
It would be a good thing if Real Madrid started thinking about the players they would buy to improve their performance next season, recruiting Alexander Arnold is a good choice, he is a defender with extraordinary talent, he can create assists to help attackers create goals if he is at the club Big like Real Madrid is a big advantage for him because he might taste the Champions League trophy with Real Madrid.
Liverpool is actually also a big club but after Jurgen Kloop left this season we don't know Liverpool's performance next season so Alexander Arnold's future is still a question mark, but at least he can try to join another big club in the European league so that his development increases and doesn't continue to be there in the comfort zone.
It's a player's decision if he wants to stay in a club or leave, also it depends on his contract signed with the team as well as the teams decision to either keep him or let him go. In PSG, Mbappe is one key man that they don't want to give off yet. Even though his contract is set to expire by summer, they still know he's advantageous and would want to keep him. For Mbappe, his stay in the team beyond and after the expiration of the contract seems to be dependent on his intentions as well as the teams performance in the long run.
Good thing for him that Madrid may not really be interested in him yet until summer so he's got to be a bit patient till then, then maybe, he'd be willing to join the Spanish side. Even though Liverpool were questing for him as well, i didn't think they were set to afford that amount for him during the January transfer window. Let's just anticipate summer break whilst watching his movement decision unfold. Real Madrid has even been performing at their best without a stable striker in the team, then we think of how much more they'd perform if they eventually get a striker for themselves. Left for me, they're doing just fine without a striker. They've in the team a lot of youngsters that are doing excellent in their general balling ability.
But still they just have to have for themselves a striker that'd be majored on that role of goal scoring and they won't have to be using a false forward in their games. Well before now, Mbappe was a prospect but Ancelloti has said for now he won't be making any change to his squad and he's comfortable with them. I believe they have what it takes to get the species of forward they want in the team and the team's commitment and bond would really boost their results. The same applies to Alphonso Davies. The both young players would be a good addition to the Spanish giants but we just have to wait on the coach. Since he's said summer will be his time for transfers, then let's anticipate these moves and watch how well and better it improves the team's effectiveness.