Today, Devin Faraci of Badass Digest who first broke that Jason Momoa maybe up for Aquaman late last year revealed a small nugget about the big Justice League baddie Darkseid. According to his sources DC won't be using him the first Justice League film in 2017 but in the sequel:
"My sources tell me not to expect Darkseid in the DC movieverse until Justice League 2, so that means a Guardians 2 in 2017 would definitely have the Eternals beating the New Gods to big screens."This is actually a great thing. Why waste your biggest Justice League villain in the very first film. Just look at Marvel they are dragging out Thanos and The Infinity Gauntlet through several films until The Avengers 3.
Justice League is expected to hit in 2017