We have a long way to go before Days of Future Past comes out but I was wondering where people thought the series should go from here based on what we know of the film so far. What future plots would you like to see developed. For me I'm not as interested in adaptations than just using the various pieces of canon to make a good film.
For the third film it should be X-Men: New Mutants, and consist of the "second generation" (in movie continuity) of Cyclops, Marvel Girl (Jean Grey), Storm, and Petra with Beast and another character from the previous films depending on if they introduce a new X-Man or not (if nobody new is introduced than I'd go with Gambit as a newcomer) and have the film take place in the Savage Lands after the X-Men are lured their as a trap by Mister Sinister and the Marauders to harvest their DNA in what is assumed to be a process to enhance the population of the Savage Land, but in post credit scenes we glimpse Sinisters real purpose.
For the fourth film it should be X-Men: Apocalypse (guess whose in that one), and takes place after the events of the first trilogy. Those events should be tweaked slightly that even though Xavier, Scott, and Jean died in Last Stand (doing away with Xavier transferring into a brain-dead "twin"), Jean had given birth to twins just prior to the events of X2 (Rachel and Nathan Summers), and had been recovering during X2 which is why her powers were going out of control and the Phoenix personality beginning to re-emerge. The twins are raised at the school following Last Stand. Two years after those events Sinister, still in the Savage Lands having survived the events of New Mutants, finishes his true work, the creation of the ultimate mutant, Apocalypse. This switches their characterizations, but the end result is the same in a way because Sinister created Apocalypse with the sole purpose of enforcing his ideals of the "survival of the fittest" in that he (Sinister) believes only the strongest mutants should rule the Earth and thus Apocalypse is created to both destroy humanity and weed out the weaker elements of the mutant population. To that affect he created Apocalypse with not only his own mutant abilities (cellular shapeshifting and through that regeneration, immortality, superhuman strength/stamina/reflexes/durability) but also those he gained from other mutants over the years (such as flight, teleporation, energy generation, etc...). Apocalypse betrays Sinister, however, killing him as he sees his father as weak for spending so much time to create something to fulfill his ideals rather than do it himself. He takes control of the latest Marauders and sets up a clinic in Europe for those mutants whose powers did not return from taking the cure in order to turn them into his slaves through introduction of the techno-organic virus Sinister had developed to create Apocalypse, thus creating the Dark Riders and the Four Horsemen. They begin terrorizing the world, leading into a confrontation with the X-Men.....who at this point now consist of Storm, Beast, Wolverine, Rogue, Iceman, Angel (who is captured and turned into a Horseman during the film), Shadowcat, Colossus, Nightcrawler, newcomer Jubilee and returner Gambit. During the film Angel, after his change, kidnaps Nathan and Rachel and delivers them to Apocalypse to force the X-Men into a final confrontation. The team arrives in time to save Rachel from being implanted with the techno-organic virus but are too late to save Nathan, who surprisingly is able to fight the assimilating process due to the sudden activation of his telekinetic abilities (and in time he'll develop telepathy and optical blasts that he can control) subconsciously surpressing the virus from taking over his body. This, combined with a hint that Apocalypse survives the events of the film, would foreshadow Nathan's growth into Cable and his continued struggle against Apocalypse. At the end of the film we see a re-powered Magneto, Mystique, and Pyro arrive at the Savage Lands and take control of Sinister's complex, Magneto stating his desires to create a Utopia for mutantkind in order to repent for his past crimes.
How would you like to see the franchise continue (if you want to at all)?