I would bet that the next Batman will be available in 3D, even if it's just a converted version.
Yeah because Nolan is a director for hire studio goon with no control over this sort of thing. Won't shoot in 3D, he is a big time devotee of shooting on film and has trashed converted 3D.
Doesn't matter, Warner Bros. will make bank from a converted 3D version. They'll put out IMAX and regular theatrical 2D versions.
STFU CHEEBS YOU DON'T UNDERSTAND THE INDUSTRY, IT IS RUN BY MONEY
If it's in 3D and on IMAX screens it will be IMAX 3D. Industry is run by money but Nolan is likely the most powerful director working in the studio system today at Warners after all the hits he has done for Warners. They won't mess with what he wants, and if he doesn't like how it is looks converted it won't be released converted.
Which is what happened on Inception. WB wanted it to be in 3D so they converted part of it. Nolan viewed it and didn't like it so he axed it.
Inception bombed. Nolan has no more control, Cheebs. I'm expecting 3D, a bat cave, and multiple Batman suits to help sell toys.
Inception will probably be sitting at $140-$150 million after ten days. And that's a bomb? Okay. 
He is trolling, Inception is a gigantic hit thanks to the holds. It will be one of the biggest earners in 2010. He knows this lol. He is pulling a Willco.