The recently launched Ghostbusters: Answer The Call miniseries is being delayed. No reason has publicly been given by IDW Publishing, but Diamond has pushed back issues #2 through #4 after #1's on-time debut on October 25.
Answer the Call #2 was originally scheduled for November but is now expected to arrive on January 3. #3 has been pushed from December to January 31. #4 was originally planned to come out January 31, but that would assumedly be delayed by IDW as well.