Some amazing ideas, definitely integration with smartphones is the future....
I don't want
all flashlights / mfg'ers to start using bluetooth, it is a cool feature for sure with all of the things that can be done. I liked using it on a gopro but having wifi on reduced the battery time from 1 hour to 20 minutes.
I like A ui where there are plenty of mode options that can be accessed quickly from <.01 lumens to blinding. With that in mind it would be cool to have a super driver that can be programmed to set what modes you want, sequence ordering, button combos to push, etc. All dandy if you can set it with the phone app, but I don't always have a smartphone handy / not frozen. If I decided I needed exactly x mode but my phone wasn't working and I didn't have it preset to what I needed, I would hope to be able to use the UI with whatever buttons are on the light. (though at this point in complexity you had better have the user manual with you :ironic
Lets talk about phones, I want a smart phone that runs off of 2 removable 18650 batteries, has 64 gb+ of internal storage, includes a built in hi cri LED and optic, can do everything that your phone can do, has durable charging ports, can be used as a battery bank, has built in radio, is emp proof, has external usb, is waterproof, has SD card reader, is fireproof, has audio jacks, is scratch and impact resistant, has built in 4k/ 16 megapixel camera that can record in low light and record super high frame rates, has high resolution oled screen, has built in laser pointer of adjustable wavelength focus and power, is tougher than a nokia, works in space, has more than 100 volume levels down to a dandelion seed landing on a plush pillow and up to a loudspeaker in volume of high quality sound, and lasts more than a year or two before going bad.