The former Cardiff man has missed the Pilgrims' last three matches after a red card against Fleetwood and Fletcher could re-introduce the 35-year-old to his starting XI with Durrell Berry suspended after his Johnstone's Paint Trophy red card.
Since his last appearance, a decision was made to allow Purse to leave Home Park to allow his manager to fund new signings but that will not alter whether Fletcher selects the experienced player.
"[He] is a professional and you don't keep playing at the age of 35 and play for loads of clubs if you have any kind of commitment issues," Fletcher told the club's official website.
"That's why he has played for so long at such a high level - he's got a drive and does things in the right way.
"We have got to make way to get people in and make sure there is money available. It's a case of making sure the books add up and make sure they're spot on because we don't want to end up in the situation we were in before."
Alex MacDonald has returned to Burnley after the end of his second loan spell in Devon.