I heard this on the radio yesterday, but I didn't get around to looking it up until just a few moments ago. This link includes some information--it is unverified, and therefore may not be true, but it is still interesting nonetheless.
I am pretty happy that there will likely be another Batman movie. Christopher Nolan and Christian Bale have done such great things for the franchise, and Batman Begins, and The Dark Knight are my two favourite comic book movies. I'm a sucker for comic book movies; they're generally good fun, but Nolan really took a leap and set a high standard for the other comic book franchises out there. Plus, The Dark Knight ended on such a downer note (at least for me, the first time I saw it in theatres I was crying at the end, and as the lights came up everyone turned to stare at me) that I want to see what happens next. Maybe this next one will end on a slightly happier note? One can hope.
It's just such a shame Heath Ledger died in early 2008. From all that I've heard, Nolan had planned to include the Joker in Batman 3. Ledger was fantastic in the role-at times he genuinely terrified me, and it would have been amazing to see him reprise it. He was one of my favourite actors, and if you haven't seen Brokeback Mountain, check it out immediately.
According to the article linked, it sounds as if they'll be getting Nolan involved in a Superman reboot as well. I don't know how I feel about this. I really liked the last Superman movie, but I'll admit to having never seen the Christopher Reeve Superman movies. I guess most people weren't impressed with it, if they're talking about rebooting the franchise only three and a half years after the original reboot came out. That being said, I strongly prefer Batman to Superman, and that seems to be a common trend among people I speak with. Is there anyone out there who disagrees with me? I love a good discussion on stuff like that. It's similar in vein to my favourite movie discussion question: Han Solo or Indiana Jones? I always say Indiana Jones, but most go with Han Solo.
I'll be interested in what Nolan does with the franchise though, and will definitely check it out in theatres if or when it comes out.