David Leslie Johnson could be third Aquaman writer involved in the script

According to The Hollywood Reporter, Orphan and Wrath of the Titans scripter David Leslie Johnson has been signed on as the latest Aquaman writer, and may be helping streamline the story with director James Wan.  However, his specific role with the script has not been confirmed.

Prior to this announcement, Will Beat and Kurt Johnstad were supposedly working on two separate scripts.

Aquaman is still scheduled for a 2018 release.

Source: Hollywood Reporter