23-year-old winger Ferguson signed on loan with the Ibrox club in January and is set to stay until the end of the season, but manager Stuart McCall has told the BBC that he is confused by his situation.
Ferguson has only made two first-team appearances for any team this term, with them both coming for Northern Ireland in October. He has 18 caps for the country and 32 professional appearances for Newcastle, but has only made two Under-21 appearances this term.
His loan to Rangers was intended to get him first-team football at a consistent and competitive level, but the upheaval at the club has put paid to that, as well as a serious knee injury that has kept him out of action. He is reportedly still carrying that knock and McCall is confused that he has been called up by the Northern Ireland squad whilst still unable to play for Rangers.
“From what I've been led to believe, we won't see him at all this season,” the former Gers and Scotland midfielder said.
As per Transfermrkt, Ferguson’s contract at Newcastle is due to expire this summer, and it would come as little surprise to see him leave St James’ Park permanently.