Rose Byrne may not be reprising her role as Moira McTaggart in X-Men: Days Of Future Past but if the following pic posted by Bryan Singer is anything to go by, some of her CIA pals will be back and Charles Xavier (James McAvoy) will be helping them better understand Mutants.
You'll also note the year on the thesis is 1973. X-Men: First Class was set in 1962 so this should give us an indication of how much time is supposed to have passed between movies. X-Men: Days Of Future Past stars Hugh Jackman, Ian McKellen, Patrick Stewart, James McAvoy, Jennifer Lawrence, Nicholas Hoult, Michael Fassbender, Anna Paquin, Ellen Page, Shawn Ashmore, Peter Dinklage, Omar Sy, Halle Berry, Daniel Cudmore, Fan Bingbing and Boo Boo Stewart, and will hit theaters July 18, 2014.