Given how repairable the steam deck already is, it'd be nice if it could be pushed one step further and make some sort of mini-socket for the SoC.
Obviously that's not a Valve thing to do but an AMD, and trying to downscale a desktop CPU socket style is primed for failure (a lot of companies are soldering on for a reason), but if AMD could make a standardized "whole system chip" that can just be swapped every generation, you wouldn't have to purchase the chassis over and over again.