Kelly missed the Magpies' 1-0 weekend victory over Carlisle due to a calf injury.
His absence prompted boss Chris Kiwomya to opt for a 3-5-2 formation and that approach is expected to be retained as County look to extend their unbeaten run to six matches.
Alan Judge bagged the winner against Carlisle and is refusing to give up hope of a play-off places.
"The games are coming thick an fast and the sign of a good team is when you can keep winning or at least make sure you don't lose," he told his club's official website.
"We're on a good roll at the minute and that's five unbeaten so we'll give everything we can until it's not possible."