Zooming TIRs
I was about to not vote, not even for the last option because I hate M@g-lite. But then I remembered how much of a consumer’s dream the Nitecore TUP is with that display. Hope we get more of that from budget brands soon!
Yeah, the maglite one is a bit tongue in cheek really 
It was meant to mean ’ just a regular no frills job’ ie, a plain bog standard C8 - I’ll reword it. 
I went with no-frills.
I’m the opposite Lightbringer, though I do appreciate a simple light too.
certainly an app enabled one would have numerous uses, and no doubt some clever clogs on here could write apps too - would be extremely useful for data, waking you up…. making the breakfast… 
There may even be arguments for a camera inside………. you never know when walking the dog etc
Only if it has a self-destruct feature…
The light I’d most like to see is something the size of a Convoy L6 (2 x 26650) format running anduril. Or a K1 scaled up to a 2 x 26650.
Interchangeable emitters? Oh no… then we will buy less lights (but seriously, interchangeable emitters???)
My favorite feature is Andúril-type ramping.
It's been around a little while, but I love it! 
UPDATE:
I voted for LCD / Oled Displays.
I've never had a flashlight with that feature, but it sounds good to me.
My charger has one of those displays, and it's very nice.
Sustained turbo mode. High CRI.
USB-C charging and firmware flashing
Tint ramping of Sofirn IF25 in FW4* / Emisar D4.
Nichia Tunable led Imagine having every tint (2700k to 6500k, 90+ CRI) from just a single emitter
Biscotti/Bistro/Anduril boost drivers that will fit in AA and AAA lights.
Anduril support for RGB leds (like the old Dr. Jones RGB driver )
USB-C charging
1. digital battery charge gauge that can be turned off.
2. ASCOB (from Westminster Dog Show).
3. free shipping.
A 300mm reflector will almost get that itch, scratched. 
ive just put aux leds GTID etc
for the form factory i will buyis the lumintop fw3-fw21 pro (max size)
ive seen a little nitecore light with lcd screen and it looks so interesting, but the light is square, not sure if i love the style,maybe it could grow on me and ill order one
but the form factor that i love wouldnt take wifi , touch screen or make my coffee either
so for me
aux leds and gaskets!
- Wavien collars
- Double-action switches (differentiating between weak and strong press)
- Zooming LEP
- Type C, USB-PD powerbank integrated with flashlight
Adjust / upload firmware wireless
Ooooh this has turned up to be interesting - I did think about adding more options, but though t it would be too much. Keep the ideas coming in here though hopefully now and again a flashlight manufacturer will look in! 
Integration in my hue home lighting. Aux lights signaling when the motion detectors in my garden detect something.
The best flashlight is spoiled if one dislikes using it. So, I’d like to see more lights with a good UI.
Direct to moon, direct to turbo, moon and turbo not in regular mode set, low follows moon. Sounds like Olight. Even better is a MCR. And that’s my answer: I want to see all sorts of lights equipped with a MCR. The lesser the additional space used for it the better.