Mark Millar revealed he's plotted a sequel to "Old Man Logan," the bestselling 2008-2009 arc billed as "the greatest Wolverine story ever told."

"It's been in the back of my mind since before I started writing the first issue of the original," he wrote last night on his message board, "but this was the first time I'd actually put pen to paper. Marvel had offered me a classic book a few weeks back and when I was sitting on the plane planning to put some notes together I just couldn't stop. Unfortunately, it wasn't the book I was offered, but the 'Old Man Logan' sequel. It opens with this insane Spidey flashback which pretty much sets the tone. My God, it's going to be fun to write."

Millar cautioned that he still has to pitch the idea to Marvel this week, "so this isn't an announcement by any means." However, he said, "the first one did so many printings of each issue. I think we averaged around 120,000 copies per book in the end and trade sales were amazing so it should be fine."

Beginning in August 2008's Wolverine #66, "Old Man Logan" reunited Millar and his Civil War collaborator Steve McNiven for an eight-part story set in a dystopian future where the United States has been divided among supervillains, who have wiped most of the heroes out of existence. To pay his rent and care for his family, Logan accepts a job from a blind Hawkeye to accompany him across the country to deliver a secret package. The storyline experienced a few delays before finally concluding in September 2009's Wolverine: Old Man Logan Giant-Size #1.