The midfielder, who can also play in defence, is one of the cash-strapped Eagles` best assets and both he, and striker Clinton Morrison, could be allowed to leave.
"I don`t think Hayden will be at Palace next year," admitted agent Andy Mills. "Although Hayden does like it at Palace and this year has been fantastic.
"He feels that he has been learning his trade under Steve Coppell`s guidance but he is a bright prospect and, if he continues to develop his game, he is destined for the Premiership."
Newcastle, Middlesbrough and Leicester would all be interested in the England Under-21 international.
