The reason that Balor is being considered for a gimmick change is that according to Tom Colohue’s backstage sources, The Demon is marketable, but Balor by himself is not looked on as hugely popular.
“The feeling I get is that the Demon King is viewed as marketable but the ordinary Finn Balor isn’t. That’s why they keep trying to force nicknames and gimmicks on to him.”
He also revealed that at this point, Aleister Black is being looked at as the person being favoured to end Demon Balor’s current streak.
Also, it appears that Balor will not be on WWE television until at least the go-home episode of WWE RAW before SummerSlam.