Apple killed the iPhone mini because it only had a 4-6% share of sales of all iPhone models. While some people may really want this, I can't imaging that it'll get more than 5% of iPhone sales (after maybe an initial higher novelty peak).
I want a screen that my thumb can reach from top to bottom without stretching or doing weird half-screen swipes to get at.
Also weird that they've gone back to touch ID instead of face ID to open/unlock.
But I'll definitely be looking at it.