IDW Publishing has released the initial solicitation for the first issue of Star Trek / Green Lantern which is set to see publication in July.  IDW is launching the event with four different covers plus an additional bonus blank sketch cover.  Artist Garry Brown will be doing one of the variant covers for each issue in the six part series which will all connect together for one giant image

Star Trek/Green Lantern #1 (of 6)
Mike Johnson (w) • Angel Hernandez (a) • Gabriel Rodriguez (c)
Two iconic franchises collide for the blockbuster crossover event of 2015! The crew of the U.S.S. Enterprise meets the Green Lantern Corps for the first time in an all-new adventure that spans the cosmos! Don’t miss the thrilling first chapter of THE SPECTRUM WAR, as Kirk and Spock make a most unusual discovery on a lost world… igniting events that will change the fate of empires! FC • 32 pages • $3.99