Razer has been one of the leading brands who has been quietly testing out 8000 hz polling rate behind the scenes. While its up for debate how much of a difference gamers will be able to feel in-game, early testers have commented that there is a tangible improvement when gaming at 240 or 360hz refresh rates. It remains to be seen whether other images have been made to other aspects of the Razer Viper design but these images from twitter show off the packaging and indicate a release may be imminent.
Update
Jan 28, 2021
The new Razer Viper with 8000 polling is now available on Amazon