With Netherlands international Tim Krul establishing himself as the number one and the aquisition of Rob Elliot from Charlton Athletic, Newcastle's longest serving player has struggled to establish himself and failed to make a single appearance for the Magpies last season.
With his playing days coming to an end, the Englishman has admitted that it may well be time to look elsewhere in order to secure regular football.
"Time's running out, I'm not getting younger," Harper told BBC Look North.
"If it's the same situation next year, I would look to go on loan somewhere as you can't get these games back."
Whilst a loan move is certainly an option, Harper was quick to point out that he had not just yet given up hope of turning out for the Magpies going on to say that he would continue to fight for a place in Alan Pardrew's side.
"My plans are to go back on July 5 as fit as possible," Harper continued.
"I've been training hard in the two weeks we've been off, training three times a week, because pre-season gets harder as you get older.
"I'll go back as fit as possible and see what happens at the start of the season."