My pixel 4a is still fine. I'll want 5G at some point but the coverage isn't there for me to worry about it yet. I don't think there's anything else in the pipeline that I'll care about.
Literally the only reason I'm not still using the 5G variant of the 4a is because I dropped it in a grocery store and rolled an IRL nat 1 (it landed on its corner, went windmilling on the rebound, and struck the edge of a metal shelf in the exact top center of the phone, severing a cable and killing the display AND touch screen). I swapped back to my OG pixel, and the only reason I'm even considering am upgrade now is because its battery is literally starting to die.