Len Wiseman was originally attached to direct back in September 2012, but he dropped out in July 2013 due to scheduling conflicts. Andres Muschietti, who directed the 2013 thriller Mama, came aboard back in September, although now the studio will have to look for yet another filmmaker to take the helm.
When Len Wiseman was attached to direct, he revealed that producers Roberto Orci and Alex Kurtzman envisioned a darker version of the mythology that would appeal to all audiences. It seems that Universal Pictures is now leaning towards a more family-friendly action-adventure, which could be the route their taking with the shared horror universe that makes use of the studio's massive library of iconic horror characters.
We reported in February 2013 that Universal hired both Billy Ray (Captain Phillips) and Jon Spaihts (Prometheus) to write separate drafts of the script, which the studio was at one point considering merging into one draft. This new report from The Wrap reveals that Jon Spaihts wrote the most recent draft, which is set in modern-day with characters not seen any of the previous versions, and a protagonist, "imbued with a human personality."
Universal is currently considering other projects for Andres Muschietti, since they parted ways on good terms. The director's departure is also unrelated to Roberto Orci and Alex Kurtzman's split last month.