McCullum only kept wicket in the second Test at Leeds, after BJ Watling was injured in the opener, before handing the gloves to Luke Ronchi and Tom Latham in the limited-overs arena.
"It's something that needs discussing," said McCullum, who only inherited the captaincy from Ross Taylor at the start of the year. "On this tour we've seen some different guys get opportunities with the gloves. We'll let the dust settle on this tour and work out the best balance of our line-up and whether that involves me taking the gloves or not."
He added: "It's an option if we can balance the team right. I'll do whatever I am required to do really. We're just lucky we have got plenty of guys in the country who can make the team as a batter and also have keeping as an option."
Watling has established himself as the preferred option in Test cricket, however, the limited-overs positions still appear up for grabs.
Ronchi failed to impress on his first tour since making the switch from Australia. While the 32-year-old was tidy behind the stumps he struggled at the top of the order, managing just 47 runs in six innings.
Latham was trusted with the gloves for Tuesday's five-run Twenty20 win and earned praise from McCullum despite missing a simple stumping off Ronnie Hira.
Coach Mike Hesson admitted he would look to sit down with McCullum to discuss his role
"If our next best batsman is in the side and they happen to keep it gives us a chance to build succession plans," he told the New Zealand Herald. "Tom's more than capable with the gloves but he's not always keeping for Canterbury, so it is a time-on-task thing really.
"He was in the squad as back-up for the Tests but to debut with a Duke ball which swings a lot after bouncing was a bit unfair. We think he has a big future."