There is. But I think Paul Verhoeven's original movie did it justice. So it's not like I feel the need to see it explored further. It's all there - in a nice, tight 103 minute long package. I don't even like RoboCop 2, because it ain't half as smart or heartfelt as the original. It's an empty, dumb and frankly not very interesting sci-fi action pic, which doesn't add anything of notice to story.
I'm not really interested in another RoboCop movie, unless the studio has the balls to let someone like Darren Aronofsky create a radical new take on the premise.
I would've loved to see Paul Verhoeven and Ed Neumeier & Michael Miner's take on the sequel (RoboCop 2: Corporate Wars). They definitely would've known what to do with it, and how to continue Murpyh's story (I have yet to read the script, I'll let you know once I have). It's a damn shame that Orion thought that their original idea was too out there and wouldn't wait for Verhoeven to make Total Recall first.