A little late on the reply, but fair enough! I'll be honest that this doesn't change my opinion that a set of separate analog triggers and digital bumpers should remain the default, but I respect that for you all-digital triggers have been a boon for your gaming experience.
What
@Concernt suggested earlier about pressure-sensitive digital triggers I could see myself appreciating over time if their implementation is intuitive and offers a range as dynamic as analog triggers even if not used in all games. Might even be more impressive than HD Rumble given how badly that flopped and to this day I can only think of 1-2 Switch as having used it effectively (hell, just implementing it at all).
I specifically want the shoulder buttons to have the pressure sensors. Keeping the triggers themselves completely clicky is important to me for ground pounds in Mario and shots and swims in Splatoon.
While there are ways to keep the click and implement pressure sensitivity, shoulder buttons also provide a favourable shape and location to be capacitive pads. Scrolling shoulder buttons seems like a much more natural input than scrolling triggers.
What this input could look like is a glossy or satin finish L and R, when you put a finger on it, the game can sense this, and can sense you moving it back and forth, like a scroll wheel, accompanied with HD Rumble. Then there's the press, a digital on and off switch like we have now, and only then would it contact the pressure sensor, and begin sensing the pressure. It could be calibrated so that the same amount of pressure on the switch, in grams, is needed to max it out as the spring in an Xbox or GCN controller. Accompany the bottoming out with a "click" from HD Rumble.
Additionally, if they want, they could also measure forward and back motion on the capacitive surface, and allow users to guide a cursor with it and press to click, if they want to avoid having a trackpad or pointing stick on the surface of the controller. This could be given software momentum and a haptic element to have a trackball-like input, similar to Steam Controller or Deck.
Another option would be to sacrifice the depth of the click to give users a greater range of pressure inputs, like the PS2 action (face) buttons.
The reason I keep talking about this, is I WANT an analogue input, and I want scrolling shoulder buttons, but either one is mechanically complex and quite large for a device like a Joy-Con, and combining them would be a design, assembly and reliability nightmare. By using capacitance and pressure sensitivity with haptics, like a MacBook trackpad, you can get an even greater range of inputs, the functionality of these elements, with a far smaller size and reduced mechanical complexity.
If they actually do it, I think "Haptic L" and "Haptic R" would be a good brand, with a tiny H on each button to denote this. Alternatively, maybe they update and brand the rumble "UHD Rumble" and call the new shoulder buttons "UL" and "UR".
Personally I expect Nintendo to give us one or the other, pressure sensitivity or scrolling shoulder buttons, but I don't dare hope for both.