But he insists his immediate priority is helping Palace win promotion to the Premier League.
He told The Sun: “I am just anxious and excited. I cannot wait. It will be something different. When I walk into that dressing room at United, I do not know what I will feel. I will keep my head down as I am there to play football.
“But I have to admit I will be a bit starstruck. Van Persie and Giggs will be in there — wow. Rooney will be in there — amazing. How can I not be looking forward to this?
“I have to be patient. I do not expect to walk in and play week-in week-out. Once I get the chance I will take it.
“Moving to Manchester will be something I have to get used as I have lived in the south of England since I was four.
“I will come down to see my family so I do not think my accent will change!
“At the moment, though, the priority is Crystal Palace.
“I can only assure everyone this is the case. I’ve had a little dip in my performance since I signed for United, I will not deny that. But I have to get back to what I do well.
“People are saying it is the speculation of going to United which saw me struggle. But Robin van Persie went 10 games without scoring but it was one of those things. He was still doing his best and playing a part. Equally, I am desperate to get Palace up.”
Can Zaha add to United next season? Or will he be a bit-part player? Give us your shout below...