The former England international sat in the directors' box at Portman Road as Michael Chopra's 50th-minute strike settled the contest.
Chopra's winner came when he raced onto a superb, lofted through ball from Guirane N'Daw, shrugged off the challenge of Alex Baptiste and coolly slotted a low, angled shot past goalkeeper Matt Gilks.
While Blackpool are yet to confirm Ince's arrival, caretaker boss Steve Thompson revealed after the game that the 45-year-old was on the brink of agreeing a deal.
Steve Thompson: "There's going to be an announcement on Monday. It's going to be Paul Ince.
"The deal is very close to being done."
Ince has not managed since he left Notts County almost two years ago and his return will see him coach his son and England Under-21 international Tom Ince.
Source: Newcastle United Mad