NBKE is open source. That means that any Tom, Dick or Harry can do with it what they want. There's no stopping you, Madkill, or anyone else for that matter from continuing where IKSLM left off.
However, it's not like you have much programming experience like IKSLM, Nebster or Mefistotelis, so one wonders what you could actually give to NBKE, especially seeing as you've literally just said that there aren't any decisions to be made about the direction the project takes.
I'm therefore guessing the main reason you want the title "Project Lead" is to give yourself an ego boost, a sense of importance. If I'm wrong about that then fair play, I wish you the best of luck continuing IKSLM's legacy.