Bellingham in Real Madrid is something out of this world, he is having so much luck asides of his mega skills. I dont remember a transfer so good for real since Cristiano Ronaldo one. Plus in this time where any team paid quirky ammount of money for random players or youths stars and ended up being a piece of shit, this seems to be not that case, and he is making a super season.
I was amazed that in the first 10 games for Real Bellingham, being a midfielder, was able to break Ronaldo's record - he scored 10 goals and made 3 assists (for Ronaldo it was 10 goals plus one assist). It is obvious that this acquisition of Real was the right decision and perhaps a key one for many years to come. Next summer Real will receive either Mbappe or Haaland and I'm afraid to imagine what the trio Vinny - Bellingham - Mbappe/Haaland will be capable of 
Real Madrid have found the perfect midfielder for their squad. He is capable of assisting as well as scoring when the team needs it. Bellingham would be a worthy replacement for Luka Modric. And if he continues like this, he will become the best midfielder in the world. Bellingham has the potential to overtake Manchester City's De Bruyne. Bellingham's fitness is good and his performances are very consistent.
Haaland is unlikely to join Madrid from Manchester City. At least as long as Guardiola is the manager of City, I think we will see Haaland with City. Madrid management will try their best to bring Mbappe into the team. Because they understand very well that they need an experienced striker. Otherwise it is very difficult to maintain consistency.