The WWE had filed to trademark "Balor Club" earlier this year, but abandoned the trademark on June 22nd. The name had been in an "OPPOSE TO REGISTER" stage, due to opposition from Baylor University. However this abandonment does not appear to be related, as Baylor still had not filed for official opposition as of June 22nd.
There is no word yet on why the trademark was abandoned, but it was listed as an Express Abandonment.
It might suggest that when Finn Balor is called up to the main roster that he will not be part of a Balor Club with Luke Gallows, Karl Anderson and AJ Styles.