Today Latino-Review dropped a new scoop and no it actually wasn't @elmayimbe this time it was new comer Mario F Robles. According to their inside source Warner Bros and DC are considering to shoot Batman vs Superman and and Justice League back-to-back just like The Hobbit films! The reason is everyone involved are high sought after actors and this is due to scheduling.
They go onto reveal that the unnamed DC Property Dwayne Johnson teased last month is indeed for Justice League! Casting is unknown but making that John Stewart/Green Lantern rumor look more and more likely.
The double-WB-wammy would also explain the overabundance of characters (Nightwing, Wonder Woman, Batman, Superman, Green Lantern, Flash) being rumored in Batman vs Superman cause actually its for Justice League as well! This is DC's way of getting back at Marvel. Batman vs Superman is going to have a massive cliffhanger/teaser that will lead directly in Justice League in 2016!
Of course with no officially announcement take with a grain of salt....
@JoshCostella There's been whispers of this the last few weeks. Wouldn't shock me at all if they film back-to-back.
— Jett Batmanonfilm (@BATMANONFILM) January 13, 2014
Josh Holloway. Batman vs Superman. NOT TRUE. The source on that story never heard of the phrase "scheduling conflict." RT
— elmayimbe (@elmayimbe) January 13, 2014
Batman vs Superman hits July 2015