It seems that USB-C iPhones are on the horizon. There’s a high chance that the rest of the accessories that still uses Lightning port will get updated with USB-C port. I do have have the MagSafe Battery Pack and Duo Travel Charger. Having them all in USB-C seems like a breeze as you don’t need to bring Lightning cable anymore but the transition would be expensive. Anyone replacing all their Lightning accessories once they got updated?
Modern USB is also just a better product. Flexible power delivery, significantly faster transfer speeds, multiple protocols over same connection, etc.
Apple will probably slowly use these for pro model upsells.