The 21-year-old has made just two starts in the top flight this season, and he was on the bench against Manchester United on Saturday.
The youngster is eager to play, and Arsenal could be ready to let him go to get some regular game time.
The Magpies boss Steve Bruce admitted earlier this week that he is hoping to bring in one or two players this month on loan.
Bolstering the midfield is one of Bruce’s top priorities this month. Newcastle have been heavily linked with a move for Hamza Choudhury, but it looks like they Magpies have turned their attention elsewhere.
Willock has been highly impressive in the Europa League campaign for the Gunners where he has notched up a highly impressive three goals and as many assists in five games.
A loan move away to Newcastle makes a lot of sense.
He needs to play regularly and Newcastle can provide him with that opportunity. The youngster will be keen to make an impact and prove a point that he is good enough at the highest level.
It would be a huge gamble for the Magpies if they fail to strengthen their midfield before Monday’s deadline.