When does Untitled Mark Millar project return?

Mark Millar is a Scottish comic book writer and television producer. He first came to prominence with a run on the superhero series The Authority. Millar has written numerous creator-owned series which have been published under the unified Millarworld label. In 2013, Millar was appointed a Member of the Most Excellent Order of the British Empire (MBE) for services to film and literature.