By Dan Lyons Drew Rosenhaus didn’t wait long to raise the possibility that the future Hall of Famer unretires for a second time. Rob Gronkowski’s Tuesday retirement announcement was almost immediately met with speculation that the future Hall of Fame tight end could return for another Buccaneers playoff run. Just minutes after the news came down, Gronkowski’s agent Drew Rosenhaus did his part to add to that speculation. “This is just my opinion but I wouldn’t be surprised if Rob comes back during the season or next season,” Rosenhaus said, per The MMQB‘s Albert Breer. He added that he believes…