Valve won't be releasing a Steam Deck with more performance until at least 2025. Given the smartphone market's reputation for disappointing incremental updates, this is the right choice. Valve should, however, throw gamers a bone with a Steam Deck 1.5.
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.