My crazy idea: how about a second screen as accessory you stick in the USB-C-port (so at the bottom of the Switch)? No own battery, it would get its power through USB.
There could be a very light and slim model (only the touchscreen) for digital 3DS and DS games and a thicker model (still light enough to feel comfortable) with a slot for DS/3DS cards.
Wouldn't this be a problem for the already suspect battery life?
- "If you have the heart of a true winner, you can always get more pissed off than some other asshole."