Law & Order Limited Series
The original Law & Order might be coming back as a limited 10 episode series, following the announcement of the 13 episode limited series of Heroes. There's even rumors that they're in talks with some of the cast members of the original run, including Chris Noth and Sam Waterston. It's not in active development, and it might not happen, as it's just in discussion at NBC right now, but I think it would be pretty cool if it did happen. The original Law & Order is the one I most think of when I think of the franchise.