Haris Vuckic, Remie Streete, Shane Ferguson, Kevin Mbabu and Gael Bigirimana are all with the Scottish Championship outfit as part of the agreement involving Magpies owner Mike Ashley and his connection to Rangers.
But if a new regime is brought into place at Ibrox, the quintet could head back to St James' Park which would leave Law with a heavy heart.
"It would obviously be to the detriment of the team because the boys who have come in are all good players," he told the Glasgow Evening Times.
"We've only really seen Haris - with the other four boys unfortunately being injured we haven't seen much of them - but he's been great.
"You can see the quality he has brought to us so we would love for him and the others to stay. I am sure the other boys are every bit as good.
"They can only help us achieve our goal come the end of the season if they do stay at the club for the duration of the campaign."
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