Being very honest, I think the original iPhone was the right size - through the iPhone 4. I appreciate that people wanted larger screens, and larger screens accommodate larger batteries, but I think the 3.5" screen of the early iPhones made for a great size.
Oh well.
My suspicion is, based on various bits of info I've seen, iPhone 14 won't see a mini and the next SE will be based on the current mini. They have been upgrading the SoC in the SE but not the camera nor the screen, and I bet they want to get that bumped up to something more modern. So this form factor/size may not be all that lost. Here's hoping, anyway.