At the Chicago ComicCon over this past weekend, X-Force writers Chris Yost and Craig Kyle hinted at a future Deadpool appearance in X-Force.
"New characters in "X-Force?" "There will be a big roster shift after Necrosha," Kyle said, "not all tragic." In addition to Deadpool, "over the next 15 issues or so you'll see a lot of new characters."
...
"We didn't want this to just be the most violent, depressing book you've ever read--we also want you to laugh," he said. Kyle concluded, "Deadpool is coming. He's on his way.""
Thanks to Eric for the tip. [SOURCE]