Now these rumours are coming right from the top.
Jeff Robinov is the president of Warner Bros. Pictures. He's been speaking to Entertainment Weekly for their big cover story on Man of Steel.
Here he is at full-tilt tease:
I think you'll see that, going forward, anything can live in this world. [Nolan's] Batman was deliberately and smartly positioned as a stand-alone. The world they lived in was very isolated without any knowledge of any other superheroes. What Zack and Chris have done with this film is allow you to really introduce other characters into the same world.
Hang on… I don't think he means it, but if you take that absolutely to the letter, Robinov is saying that Man of Steel's 'world' does have knowledge of other superheroes. I think that's a slip, though.
But what are Warner Bros going to do with the possibilities this offer? Will they press ahead with Justice League?
We'll announce something in the next several weeks that will hopefully position the DC characters and the movies we're going to be making.
But still, that does leave us with more questions than answers. And so does Robinov's response to another rumour.
Recently, gossip was that Christopher Nolan would be producing Justice League and bringing Christian Bale back to reprise the role of Bruce Wayne. Asked if this is true, Robinov said:
No, no it's not.
But that's not a fully useful answer when there are two clauses. Which bit isn't true? All of it? Or just one half or the other? Will Nolan be back without Bale? Could Bale possibly be back without Nolan?
Also not totally clear is Robinov's comment on whether or not Nolan's Dark Knight trilogy stands entirely alone. He seems to change his mind half way through:
They do. Or they did.
How does that mesh with the comments I quoted first of all?
We are dependent on the transcript of EW's Anthony Breznican, so here's his own interpretation of what Robinov meant:
When Robinov said "They do. Or they did," I at first took that to mean he was leaving the possibility open to retroactively link-up those three most recent Batman films with upcoming DC-based films. But as I listen to the conversation again, I suspect what he actually meant was that upcoming Batman films wouldn't necessarily exist in their own closed-off world the way the previous ones did.
I dare say we're going to get a new DC movie or movies announced in those "next several weeks." Maybe it will just be Justice League. Maybe it will be the Plan B that we've heard rumours of and are still investigating. Maybe it's going to a Batman reboot. Or maybe it's all going to start with a Man of Steel sequel.