An exciting 2-2 draw with Notts County at the weekend means the Cobblers will go up if they defeat Bristol Rovers in their next game although they could secure promotion with other results going their way.
Bristol Rovers will provide strong opposition having moved into the promotion places with a 3-0 victory against Crawley Town on Saturday.
Defeat at Carlisle on Easter Monday is the only time the Pirates have failed to take maximum points from their last eight matches and with Northampton unbeaten in 18 games it promises to be a cracker.
That should ensure a large and loud travelling support at Sixfields and an increase on the 6,428 who watched the Notts County game as the club's new stand was used for the first time.