Shutter speed can be used to give an more cinematic feel as well as reduce flicker, judder, shakes, vibrations, much like a filter can.
A filter was used to darken the image so that the Hero would have to open the shutter for longer exposures. Now, that can be done with the shutter. Slower shutter means longer exposure and smother capture (in some cases).
My first experiments will be 24fps with 1/48 shutter. Logic behind this is that film and commercials are often shot at 24fps. The "general" rule of thumb for the shutter - going all the way back to early film days - is to double the fps or 1/2xfps. Basically the shutter would have 2 holes on a rotating disk that was 180° Apart.
Said another way, if fps is 24, set shutter to 1/48. Longer if you want more motion blur. Shorter if you want a more jittery staccato look. (In general)
Slower shutter means you need less light. Faster means you need more. Faster shutter in aerial would be a bad thing for filming. It would make vibrations more apparent. Slower shutter speed smoothie that apparent high frequency vibration blur out.
So if you lock in shutter speed, how do you adjust for exposure?
Before this upgrade, the shutter was in auto and adjusting to the amount of light. Now we can lock the shutter at 1/48 say and let the ISO do the adjustments if necessary. Depending on the day, you can set the ISO to 800 Max and the ISO will vary while leaving the shutter at 1/48.
Does this eliminate the need for filters? Not really. On super bright days you'll want to help cut the light just as you do now.
Using a combination of shutter speed, ISO, and filters you will be able to dial in a perfect exposure / look. If you like the way things work now, you can leave the shutter speed to auto and ISO to Max.