It's interesting to see the elements that ended up on screen (like Bishop's red cape) and those ideas that were ultimately abandoned, and there will no doubt be some X-Men fans who prefer the costumes in this concept art to what was eventually used. No offense meant to Iceman, but the above outfit is probably a little cooler than the vest-jacket-with-popped-collar that he went with in the end. It certainly looks like the future mutants' costumes were designed from the start with dark grey and black palettes, perhaps to make their respective colors (like Sunspot's yellow, Bishop's red, and Blink's purple) stand out more.
Since X-Men: Apocalypse is set in the 1980s we probably can't expect to see Jubilee putting in an appearance, but there has been plenty of speculation that Cable will be introduced in the next team-up due to his personal ties to Apocalypse. Screenwriter Simon Kinberg has confirmed that Quicksilver will have an expanded role in the sequel, however, and teenage versions of Cyclops and Jean Grey are also expected to make an appearance.
Do you wish that Jubilee had been included in the future timeline, or do you think that X-Men: Days of Future Past already had enough mutants?
Fantastic Four arrives in theaters on June 19th, 2015, followed by X-Men: Apocalypse on May 27th, 2016, The Wolverine 3 on March 3rd, 2017, Fantastic Four 2 on July 14th, 2017, and an unspecified Marvel film on July 13th, 2018.