I'll take any characters at this point besides those 3. They bore me to death.. they always have.
I thought Wolverine was used extremely well in the First Class trilogy though.. cameo in first class, uniting both timelines in DoFP (let's be honest, in the movie-verse, he's the only character that made sense in doing this), and an AMAZING cameo in Apocalypse (I though so anyway). We knew it was coming because of the one tease in a trailer, but still... I loved that cameo.
I'm super curious to see what Deadpool 2 brings and how that is handled. Given the success of the first movie, does it get a bigger budget? Does it introduce Cable and Domino and lead into X-Force? Does Gambit fit in to any of that anywhere?
The one good thing about Deadpool v Gambit in the comics is now they have an established history and Gambit could very well show up with Deadpool on screen at some point. Which would be just delightful.