All-new Fire TV Cube, hands-free with Alexa and 4K Ultra HD, streaming media player
Amazon just released an new version of the
All-new Fire TV Cube, hands-free with Alexa and 4K Ultra HD, streaming media player.
The new FTV Cube is supposed to be twice as fast, which I guess translates into it being able to screw up your commands and push ads at you twice as fast as before!

I still find Alexa to be nearly useless with my Fire TVs.
Nebula Soundbar – Fire TV Edition
Amazon also announced the 3rd party
Nebula Soundbar – Fire TV Edition, 4K HDR Support, 2.1 Channel, Built-In Subwoofers, Alexa Built-In.
The soundbar with FTV built-in might appeal to some, until you look at the ports and realize it only works with a TV (one HDMI output, zero HDMI inputs). I'll stick with my Sony soundbase that allows me to hookup my FTV, Roku, and two more devices via 4 HDMI inputs. Personally I never cared much for devices like TVs and soundbars that have FTV, or any other flavor, built-in. I prefer just adding the latest FTV device. Those devices get updated nearly every year and they tend to work better than the software versions built-in to a TV or soundbar. Plus with built-in services, you are at the mercy of the manufacturer to update those services. Amazon cannot force the manufacturer to update their FTV service.
Looks like it is WiFi only--no ethernet port.
The USB-A Port is "for Factory Upgrades ONLY."