If you abandon the AFS feature, I believe there's a little bit of work to get the LED headlight to be adapted. If you find good deal on them, I think it's worth it to have the bright and uniform light.
I don't think so. But, again, I don't have the electrical portion of the service manual. From what the drawing shows, there is no high beam bulb. The high beams are linked to the high beam assist feature in the head unit and driven through the LED controllers, as opposed to via a set of relays that turn off one bulb and turn on another.
The regular halogen units use a separate Sylvania 12 Volt 60 Watt HB3 Halogen High Beam bulb.
This is the LED assembly, which only uses separate turn signal bulbs (front and side), from what I can see (and of course the LED projector).
But, the customer facing parts diagrams are not always complete, because there's sometimes blow-up portions with more detail and more parts. If that's the case, then, perhaps there is another bulb. I will check mine later.
But, if it is just the one LED emitter, then, instead of relays controlling two different bulbs, it's the LED module and software controlling LED position/intensity (I am not sure if it simply tilts up the masking or re-aims the projectors, or turns up the power).
That would mean that even the high beam part of the light stalk does vastly different things when activated.