Marvel Comics is teasing a new X-series titled X-Men: Black, a fine addition to their color spectrum of X-Men: Blue, X-Men: Gold, and X-Men: Red. The subject of the press release simply said "Hearts of Darkness," a possible allusion to a crossover with the 1979 movie Apocalypse Now.
More information will be revealed at Comic-Con on Sunday, July 22 during the X-Men panel, which will take place in room 5AB from 11:15 a.m. PT/2:15 p.m. ET - 12:15 p.m. PT/3:15 p.m. ET.