Next EU could mandate an attitude adjustment to the industry wishing to sell their products in the European Common Market. Batteries are part of a device. There are other parts that can be replaced by the owner or third parties if there are sufficient parts supplies, either first-part or third-party, and these parts aren't explicitly killed by the device's DRM even if they're sourced outside of the manufacturer's own…
I would fly to Europe to buy my next phone if it ever happens though.