1. No we won’t. Batteries aren’t going to be able to be popped out and in by the user on a daily basis.
2. We HAD phones that allowed exactly that. When given the option people overwhelmingly preferred the durability of non-removable battery phones. Only a tiny tiny majority of consumers want this. Forcing it on the rest of us who prefer the tradeoff of durability, waterproof, etc. is asinine.
3. USB-C isn’t an improvement for most of us. It’s bigger, less secure, less durable, less waterproof, and inconsistent in what it actually supports. The only advantage USB-C has over Lightning is top data transfer speed, which few iPhone users actually care about. Just like removable batteries the EU forced a feature wanted by a small minority on the rest of us even if we didn’t want it.
For customers like me the EU has already made the iPhone a worse experience.
Meanwhile if you wanted a phone with a removable battery and USB you could have bought one already. They exist. They just aren’t sold by Apple.