Wharton is being eyed by multiple Premier League giants — including Liverpool and Manchester United — after a standout campaign at Selhurst Park.
The 22-year-old has produced five assists in 31 top-flight games, becoming one of the most sought-after deep-lying playmakers in the division.
The former Blackburn Rovers star harbours ambitions of making Thomas Tuchel's England squad for the World Cup and also competing against Europe's elite at club level.
According to The Sun, Wharton wants to leave Crystal Palace for a Champions League club this summer, with Man United placing him on their shortlist of possible Casemiro replacements.
It is reported that Wharton could be available for around £60 million, but it remains to be seen whether the Red Devils pursue a deal for the talented youngster.
Whatever happens, though, Palace's midfield maestro is destined to depart South London and will want to end his time at the club on a high when they face Rayo Vallecano in the Europa Conference League final on May 27.