"Ryan could play until his 38 and it would definitely be here. I think he'll be here for a long time," Fergie told the club's official website.
"He's taking his coaching badges and we like the structure of our former players remaining part of the club like Bryan Robson and Ole Gunnar Solskjaer, who are both ambassadors for the club.
"The model of that is, without question, Bayern Munich and I've been saying for years to the people at our club that our former players, who have been such a credit to United, should always be included in the future.
"I'm sure Ryan will be part of that."