I have an X with a new Apple installed battery. I had been planning on upgrading to the 12 pro but the camera difference between it and the Max has me really annoyed. I don't want the huge phone but do want the best camera. So I'm seriously considering waiting until next year on the hopes that they will equalize the cameras on the pro models. My X really still is a decent phone and I don't feel the pressure to upgrade that I've had in the past.
Next year the camera difference might increase. It’s certainly not going to be any less than this year. Next year Pro Max will be the only flagship. Pro will be lower in ways other than camera.
Pro Max will be fully wireless.