There may be some life left in Jack after all, according to TV Guide's Mega Buzz:
My brother-in-law told me that he read that this is the last season of 24! Please tell me he was yanking my chain. — Pat
MICKEY: Brothers-in-law are good for two things, and two things only: stocking the cooler and moving furniture. He was yanking your chain. My 24 sources tell me that the show's move to New York has reenergized the cast and crew, but that no decision has been made about future seasons.