I doubt it. 120 lumens from the E2e package (well 1/8 of an inch bigger) is pretty darn impressive.
More light will equal more size now. I can see a custom extender to run the E2e at three cells, so E3e with a P91. Is that even possible? 200 lumens from something thats an inch longer, well around there.
For now, unless you have a light that was dropped by a UFO that is the size of a Arc AAA and outputs 1000 lumens, you are stuck with the best /ubbthreads/images/graemlins/smile.gif