Both of those features require, really, an e-switch. The M21B, with its power switch is never going to get either.
The M21D and M21F have usb-c charging, but not Andùril. And they will be available with the GT FC40 soon.
I love my FC40 M21B. It’s a great host with a great emitter.
ETA: Dunno why I left if off, but the M21E is also an e-switch host that will eventually get the FC40.