This is great news, I may actually upgrade now (have ATV3 currently).
Next question for those who have the ATV4 and Logitech Smart/Hub Remote (which uses a RF remote along with a base unit that does IR and Bluetooth), how well does it work since the ATV4 doesn't currently allow BT keyboards? I may continue waiting to see if Apple supports these (although since the ATV4 remote is what allows voice control, it may be another remote that ends up on the coffee table anyway).
I have a Logitech Home Hub and it works fine with the new ATV. In fact, I didn't have to do anything... I just unplugged my old ATV and then plugged in the new one: my Logitech remote just continued to work with the new one without problems.
I think the Logitech Hub is mainly using IR with the AppleTV... I never really understood why it wanted a Bluetooth connection as well...
As for dealing with the new ATV remote... Mine is still hanging out on my coffee table. It's a toss up whether I pick it up or just continue to use the Logitech remote. Siri is nice, but actually, the "cross pad" on the Logitech remote is a little more precise for selecting shows/movies.