The MCU is dying, why integrate the mutants into a burning house? Start over fresh and clean. Bring the Foxmen in for these last few movies if you must, but it would be stupid to try to anchor the future of the franchise on the relics. I for one refuse to accept that Singer's vision for these characters be perpetuated longer. Cut off that diseased limb[with Secret War] and let the healing begin[in a new MCU2.0, with X-Men, FF, Spidey, and the Avengers+ all interacting and relating from jump, as Stan and Jack intended].