Jenny Vrentas of the Newark Star-Ledger spoke with Harris' agent and reports no extension is expected until the NFL labor uncertainties are sorted out.
But Jets general manager Mike Tannenbaum and coach Rex Ryan have expressed they want Harris to be "a Jet for life," agent Brian Mackler told Vrentas.
"We understand the ramifications of an uncapped year and no CBA for a second-round pick," Mackler said. "As we stand right now, we can't do a contract without doing a structure David and I are not comfortable with."
Harris is a member of the Jets' so-called "core four," who were hoping for new contracts. The others are All-Pro cornerback Darrelle Revis (holding out), Pro Bowl left tackle D'Brickashaw Ferguson (received an extension before training camp) and Mangold (about to get his).
As Vrentas explains, there are all sorts of stipulations for hammering out an extension in an uncapped year that would make a deal unfavorable for Harris, who was the leading tackler on the NFL's top-rated defense last year.