From my perspective, and possible from the perspective of those who don't have a 13 in 2025. The anniversary model is meant to be all screen, at least this is what I read here. The 17 is getting incremental upgrades, with an update to the camera bump which imho seems to be dictated by the desire to have a new design, rather than by necessity. The 18 is rumored to be doing away with the D.I. but only to give us the whole-punch design.
I didn't realize that this needed to be spelled out for someone who's a contributor here, but that is what I mean by half-assed.