It’s going to be easy for ideas to get lost in a thread like this, as there can easily be such a wide variety of ideas discussed that it’s hard to keep track of. But why not throw out my own, which I know is a want shared by others around here:

Emisar S1 or S1A - a super compact, single emitter, 16340 or 14500 powered 1+FET light with a similar form factor to the Olight S1, but based on the drivers and firmware Emisar uses. I bet it could do 1200+ lumens initial output with a high CRI LH351D.

I’ve also got a bunch of tint-ramping ideas, but they’re non-trivial to implement.