The fact that the TV remote now has USB-C is a positive sign that maybe Apple is eventually going to retire Lightning.
Apple has
always had a plan to retire Lightning, it's all a question of timing. When they first released it, they stated pretty strongly that, the 30-pin connector (with many pin reassignments and trickery/reconfiguration along the way) had lasted them 10 years, and now they had designed a new connector (Lightning) that was intended to last them another 10 years (with things like a smaller number of pins, but a protocol negotiation at each plug-in over how those pins would be assigned/used). And that 10 years is basically up now.
I don't think USB-C is a
terrific replacement for Lightning - it's faster, sure, but it's only a few years newer, not ten years newer, and the connector itself is less robust, and the connector is used for too many different things (several revisions of USB 3, plus Thunderbolt, plus Power Delivery or not, and in the early days there were some cables that were actually dangerous to connect to some devices, even though they all used the same connector) - none of those incompatibilities ever happened with Lightning. But I think USB-C is a
decent replacement for Lightning, mostly because it's
way faster, can handle more power, and it's ubiquitous. I still think it's possible the next iPhone may drop the physical port and go entirely wireless - I suspect Apple may have gotten there on their own in a couple years anyway, with their hand now forced by the EU. If they do that (go wireless), I hope the iPhone ends up with an auxiliary connector like the SmartConnector on the iPads (a small row of copper pads with a magnet) - not as the primary charging interface, but as a way for restoring phones, developer use, and such.