Part of this involves him traveling to the events of X-Men Origins: Wolverine and killing the version of Deadpool that Wolverine and Sabretooth fight at the end of the movie.
The short of it is, we do see Hugh Jackman as Wolverine on screen in the movie during the post-credits scene.
While Hugh Jackman has hung up the claws as Wolverine following Logan, many hoped that maybe we would see some sort of cameo in Deadpool 2.
In any case, even if it wasn’t much, the proper version of Deadpool was finally on screen with Wolverine in a pretty epic way.