Not being able to charge from a backpack or a car is a non-starter for me. I go weeks without plugging my phone into the wall, but when I need it, I really need it.
I'd say there are serious physical challenges with this problem. Wireless power transfer over distances of more than an inch without big parabolic antennas is about as realistic as hoverboards.
In this hypothetical future you'd have to replace the power bank and charging cables that you currently own, but you'll be able to achieve both of those goals just fine. You can already buy power banks[1] with built-in charging coils, and I imagine some enterprising company will be along with a svelte USB-to-Qi-coil cable that suctions onto your phone any day now.
1. https://thewirecutter.com/reviews/best-qi-wireless-charging-...
You'd need to carry around a pack twice the size.
I don't know about effectiveness, but 20-30 minutes of wireless charging gives 60% + of battery power on my phone, and while i don't regularly charge my phone fully in the jacket, only top it off, i charge the battery pack once every week or so, and it is very rarely at 0%
[1]: https://www.amazon.co.uk/SANAG-Wireless-Portable-10000mAh-Co...
[2]: https://www.ministryofsupply.com/products/mens-mercury-intel...
https://www.europarl.europa.eu/doceo/document/RC-9-2020-0070...
Yes. And I think they will use Smart Connector currently used on iPad as Data and Power Connection. Since it isn't really a port so the devices is still all sealed up. Assuming they get rid up Sim tray as well.