I've been saying there should be the film Mathilda for years, literally, years. Hoping some producer will somehow through the magic ethers pick up on the idea and give Besson a call.
Obviously Leon is dead, so the film Mathilda would be about Mathilda all grown up, having left the school for girls, and maybe having become an assasin, or just abit dodgy with a... 'dramatic' ability to take care of herself and get things done.