Hidden behind their; sexual themes, violence, and humor, the Deadpool films have also had ‘hidden themes’. The first being Love, the second being Family. For the third film, the theme could be…Legacy. In the wake of the Deadpool 2, Wade Wilson and his girlfriend Vanessa, plan to begin starting a family. However, Vanessa is killed in the opening scenes of Deadpool 2 and then resurrected in the post- credits scene. Deadpool 3 could pick up with Wade and Vanessa continuing their quest to begin a family, leading Wade to begin thinking about what kind of Legacy he wants to leave for his family. Queue, mutant hating bad guy. One of Ajax’s henchmen from the Deadpool actually survived, and had taken Wade Wilson’s severed hand (He cuts it off in order to escape Colossus). The henchman takes it back to their headquarters where a new Doctor (obviously replacing the deceased Ajax) is continuing the Weapon X program. He uses Wade’s DNA to clone him, and has been experimenting on the clone since the end of the original Deadpool. This clone, ends up becoming the Weapon XI version of Deadpool from X-Men Origins: Wolverine.
Once the clone is activated, he’s dressed in a black and red suit. This leads to the clone being referred to as Deadpool and causing Wade’s reputation to be dismantled. This leads with the returns of; Colossus, Negasonic Teenage Warhead, Yukio, Domino and of course Dopinder and Weasel, to stop Weapon XI and shut down the program permanently. However, this also leaves the inclusion of new characters. For example, we could finally get the Wolverine and Deadpool team-up fans have been dying for (If Ryan Reynolds succeeds to break down and suck the will out of a certain Australian actor) seeing as how both mutants have history with the program. It is also leaves room for Marvel to official connect Deadpool with their new X-Men universe since X-Men has officially been bought by Disney.
The inclusion of Weapon XI is sort of a little comedic touch, as Wade will surely make jokes about X-Men Orgins and the fact that he had already gone back and “cleaned up the timeline”. If they really want to push it, they could dress Weapon XI in a green CGI suit. Reflecting how far Reynolds has come since the two movies he rips on as well Wade’s legacy being murked by the X-Men Origins version of himself.