This has been confirmed at Comic Con. Frankly I think they're being greedy and wanting bigger too fast. We need a non-alien invasion, Earth-bound pure-Superman (of Snyder's Man Of Steel variety) film next, so as to embed the character and establish the newly-minted status quo for him and this world. *Then* start to bring in other elements: I'd already suggested a Superman/Batman should come after, followed by a JL movie and individula character spin-offs.
It also sullies the Batman waters: Superman has just basically landed in the Nolanverse, so it should be Bale who plays Bats. I could have bought it more if they'd intro'd the new Batman as part of the new JL ensemble but bringing him in now feels too early and connected to Bale.
Going straight for mixing in other characters into the new Superman series also muddies that before it has had a chance to, erm, fly. The guy has only just been introduced! Let's see him - and us - acclimatise! In some ways, this news has also affected the way I see Man Of Steel: it wasn't a Superman film anyway, but now it seems it wasn't even the first in a Man Of Steel series, just a way to bring him into the Nolanverse so it could be expanded quicker.
Color me disappointed at WB's short-term selling out on these films.
