The only thing I've ever considered adding to the Dual Shock or most other controllers is an extra two face buttons, for 6 in total. I think this worked well on the Saturn and although it does break the simplicity of just four buttons in a diamond arrangement, I think 6 buttons is manageable, the Xbox did have 6 but I didn't like how offset they were, I'd prefer them to follow in line with the current 4 buttons. I don't expect many people would like it though and 4 buttons does suffice most of the time. Sony would never change their iconic 4 symbols anyway.

I don't much like the idea of adding more to already feature packed controllers which are ever rising in cost. So really I'd be fine with no additional inputs, it's a great controller as it is. In fact, I might like a slightly cheaper version without rumble.

Yeah, I have no problem with the layout of most controllers. When I see people saying the left stick needs to be in the upper left I don't get why. Why doesn't the right stick need to be upper right too? I can understand that on older PS consoles it was possible to touch thumbs if you rotated both sticks towards each other so that could be a small issue, but that's a spacing problem that DS4 fixed and not an inherent problem with left stick placement. Wii U, Xbox and PlayStation all have a different arrangement of the sticks but my thumbs can handle them with ease. I guess I have super thumbs.

The joycons do give me a bit of trouble, I find them slightly small and a bit easy to press the shoulder buttons unintentionally but still with a bit of use I can adjust in most games.

Nintendo invented everything!

Motion controls go back to the power glove.  The Wii was the first time they were done right though.  Basically Nintendo did it first (power glove) and they also did it best (Wii).  You're right!  Nintendo really did invent everything.

Yeah. That's what I'm saying. Nintendo invented everything!

Agreed. My hands are symmetrical, so my controller should be, too.

Agreed doubly. Hilarious that Nintendo fans really have no clue about the history of gaming, so believe Nintendo originated it all.

Also, Nintendo played no role in designing or releasing the Power Glove. That would be Mattel.

A very highly rated controller. But, I guess in your mind Nintendo screwed up and it was actually garbage.

An off switch for the stupid light bar.

A button to transform it into a DS3.

It's a fact that Nintendo designed or used first many of the input features common nowdays in controllers.. it's absolutely history of videogames.

Nintendo implemented for first: D-PAD (nes, gamewatch), 4-buttons layout (snes), shoulder buttons (snes), analog stick (n64), rumble (n64), 4-players controllers (n64, gamecube), motion sensors (wii), gamepad with touchscreen display (wii U), detachable dual controllers (switch), hd-rumble (switch), dual-screen gameplay (ds), microphone gameplay (ds), stereoscopic 3D gameplay (virtualboy, 3ds).

It's simply their philosophy to experiment and innovate on input device and gameplay, and it's one of the reason Nintendo is still here unlike Atari or Sega.

I hope that they at least won't remove features again, and possibly bring the pressure sensitive face buttons back.