Untitled Batman Project and IMDB: Rumor or Conspiracy?

A few weeks back, IMDB listed Dick Grayson as a rumored character. Then Joseph Gordon-Levitt was listed as the Riddler/Edward Nigma. NOW IMDB lists Johnny Depp AND James Franco as separate but both rumored for the Riddler role. Is IMDB really that unsure of the casting or are they messing with fans that are hungry for any scraps of information on this highly anticipated movie? Either way...
Once this project gets rolling I think the viral marketing will have to be off the charts. Domain names rumored to be purchased like www.wheresbrucewayne.com and IMDB's ever-changing roster of great actors to play a villain (that might not even be the real villain) will keep fan's heads swirling with possibilities.

The only thing we know right now is that Nolan said he will not recast The Joker, as it should be. However, I wouldn't mind a brief nod in Ledger's direction. I can see a scene at Arkham where you can hear a distinct laugh echoing eerily down the corridor. This audio would be taken from Ledger's actual performance in Dark Knight of course. Something like that would be the cherry on top for me anyway.

Nolan and camp will spill information only as they see fit, and I like that. I don't want to know too much, but a little taste here and there keeps my appetite up. Filming won't start until Spring 2011, whether it is in Chicago again or if they will try their luck in NOLA. Perhaps a combo would be nice for continuity and giving New Orleans a piece of the pie. Until then, I look forward to whatever scraps are offered.