3) Siryn
The daughter of Banshee (a character who appeared in X-Men: First Class), Siryn ended up becoming the unexpected co-star of Deadpool‘s solo title in the 1990s. Wade fell head over heels for the X-Men member, and while his behaviour often bordered on being more than a little bizarre – sleeping under her window outside the X-Mansion for example – things between them got pretty sweet, especially as Siryn was one of the first people to see through Deadpool’s witty façade and treat him with kindness.
For her to take on a leading role as a new love interesting in the Deadpool sequel, that obviously means we’ll need to say goodbye to Vanessa, but does she really have all that much of a story left to tell?
Of course, should she be revealed as Copycat, that would actually give the Merc with a Mouth a good excuse to turn his attentions elsewhere. The first Deadpool movie did such a great job with Colossus that getting to see this sonic screaming mutant in the sequel is definitely an exciting thought.