Spidey 4 - Looking at writers Hellboy 3 - DelToro's doing the Hobbit so it'll be a few years, if at all RoboCop - On hold I belive
Robocop - They showed a preview poster at SDCC last year. It's apparently a remake. Personally I'd love a continuation but with the timeframe of the original and current year, I think a remake for a few years in the future isn't a bad idea. Iron man 2 - In filming. Check Marvel.com for photos. Captain America and Avengers are now 2011 I believe. It could be 2012. The last official Batman statement by Nolan was that there were no immediate plans. There have been tons of rumors since and DC is pushing for it.
The Hellboy Series is Over. The next Batman film by Christopher Nolan is a long time from happening. Robocop is a remake. Spiderman 4 is being pitched around as a 2 Part Film story possibly but when more information surfaces for confirmation we'll all know whats what Captain America, Thor & The Avengers will be released a year 1/2 after Iron Man 2 if I recall
Raimi decided against that. One film at a time, he says. Current theories on villains in spiderman 4 are Lizard, Carnage, and Morbius, though the studio has (thankfully) determined that two villains in a film is enough.
Last I heard, Nolan was going to write the script while working on WB's 2010 tent pole film Inception. But it's well worth the wait, because if Nolan does it, he will give us his best and it will be phenomenal.