Why Pro etc for a Mini? I thought the point of Mini was not only to be a sanely sized phone but also a phone that is just a useful phone and not a phone with spec list that were more than overkill.
Right one is where I draw the line, take it or leave it.
Jokes aside, I just don't think the size of the device should be what decides the features that go into it. Sure, battery would be on the chopping block unless you make the device thicker, but I would have no problem with a thicker device, especially if it's otherwise the size of the 12/13 mini.
I'm confident it's possible to make a device the size of the 13 mini (slightly thicker to accommodate larger battery), with all the features of the 16 Pro, and I bet it would sell like hot cakes. I think many Pro purchasers buy Pro as a status symbol, but they don't actually want a large phone, that's my head canon for explaining why the 12/13 mini had poor sales figures, and I guess I know I'm probably wrong, but I want to be right, I'm tired of these huge phones that don't fit in my hand.