I don't believe they even use the Lux at present, they use Nichias for the LED's, dont they?
There are two issues that I see preventing an A2-CE from getting off the ground (slight pun intended...but we're getting to that).
A) SF would likely have to raise the price, even slightly, to drop 3x Crees into an A2 (which they've said would not happen.
B) While 90%+ of A2 users may never fly a plane, the major idea was a LOW output LED function for cockpit use, with a HO hotwire for pre-/post-flight inspection. If you double the output of the LEDs (actually I bet WAY more than double since we're starting with 5mm Nichias)...you've effectively killed that idea (along with my night-adapted vision).
Now I'm with you that it may be a good light, just not likely to be an A2 Aviator...
--Mike