Ronaldo is expecting to renew is contract with Al nasser so I don't think Manchester United will try to sigh Ronaldo to the team. They need young players not at Old players. Manchester United are in a bad condition since last two seasons and they have not fixed the issue, and new season will about to begin and have not seen any big player that they have sigh to the team because seriously Manchester United need new striker in the club. But what I notice is that key players don't have the interest to come to Manchester United because they are not playing any tough competition just the league, not even in the Champions League competition.
So I observe that he will be very difficult for Manchester United to get a new key players in the team. Let see how Amorim will handle to club next season and see if they can win the EPL next season since they are not in any competition that can make them focus on both the league and other competitions but since they are playing only the EPL if they do well they'll probably be the favorite to win since they are also a big club.
Yeah but you have to understand, Ronaldo is not just a player, Ronaldo is a kind of brand.
Many teams, such as Juventus, also take it as a marketing operation in order to attract fans and season tickets, also considering the sales of additional material such as shirts and merchandising.