SureFire isn't doing any research or developement of incans, but there are companies out there who are doing some amount of R&D. It's small comared to the R&D being expended on CFL, LED, HID, etc., but it's still happening.
What would be interesting would be to see a production incan based on the Osram IRC technology. IRC = Infrared Reflective Coating. It lets the visible light pass through the envelope, but reflects the heat back towards the filament. This results in a 25 perecent (or more) increase in efficiency, depending on what filament lifetime you are aiming for. Right now the Osram IRC lamps are 12V, which need significantly over 12V to be driven to levels that we here on CPF like, e.g. 3200K CCT. So this is impractical, or at least an issue. If we could get Osram to make a 6V IRC lamp, with an eye towards over-driving and the resulting heat-management issues that might arrise, we could come up with an incan that would achieve over 40 LPW instead of 30 LPW, and with decent filament lifetime to boot (50+ hours instead of 15 or 20).
But even that just doesn't compare to LED and HID efficiency, so what company would bother? Incandescent technology isn't obsolete yet, and is still quite useful in certain situations, but it's an outmoded technology that is destined to fade away unless some startling new improvement comes along to rescue it from that fate. Which is possible, of course, but unlikely. Even if there is such an advance waiting in the wings, we won't find it unless we look for it--and no one is looking that hard for any such advance.
In other words, the short answer to this question is: NO.