They have so much money, they can pay every player in the world and they can pay all the salaries as well. Mbappe wouldn't be a problem either, but the problem with very good players and stars is that they have little interest in playing for Newcastle United. Of course, PSG and City also started this way.
If they can make it to the Champions League, I see no reason why world-class players will not sign for them, because their new owners are ready to compete in the Premier League, and they have been trying to bring in world-class players.
Perhaps the richest club in the Premier League right now is Newcastle. But we still don't know how much the Newcastle club owner is willing to spend to strengthen his squad. It is possible that Newcastle's goal is to win the title. And they definitely need talented and star players if they want to win the title. The way Newcastle have been performing this season, it is easy to see that this is a very promising team. They will be playing for both the Champions League and Premier League titles next season. And so now if Newcastle wants to sign a star player, they will probably accept Newcastle's offer.
It's hard to guess, what steps will be taken by the owners of Newcastle because they are too closed, but it's really surprising to see Newcastle manage to stop in the top 3 in the middle of this season. I'm sure Newcastle will make a big surprise in the transfer market next year because if they manage to finish in the top 3 then they will qualify for the Champions League, and at that time they needed additional good players.
Newcastle have lost just one match this season. Newcastle are performing better than the big clubs like Liverpool, United, Tottenham and Chelsea. And they have been able to maintain consistency. Staying out of the relegation zone was challenging for this team in the last season as well.
Because Newcastle are playing very well. Their coach has been able to stabilize the team, and they are now third in the table, so it is conceivable that the Newcastle owner may not be stingy with spending now. He will raise huge funds to add star players to the squad.