The original Deadpool already made numerous references to Hugh Jackman and Wolverine, so the groundwork has been laid for a quick appearance.
At this point a Wolverine cameo in Deadpool 2 seems like the easiest and most straightforward way for The Merc With The Mouth to interact with our favorite clawed anti-hero.
As long as they don’t show the “ball fondle” referenced in Deadpool’s opening scene, we will be fine with a simple cameo.
Hugh Jackman has made his desire to officially retire from the role of Wolverine incredibly clear over the course of the last year, so a cameo in the Deadpool sequel could allow him to honor that decision while still giving fans what they want.