Apparently my post was removed since I posted links to "competitors", with competitors being swedish resellers who doesn't even allow orders from outside of Sweden, and thus aren't competitors to Overclockers. Someone doesn't have a very high IQ.
But for public knowledge. The Asus ROG Crosshair VIII Dark Hero was listed on two Swedish stores on the 16th. The delivery date is currently "unknown", but there is a mention that new motherboards with factory support for the Ryzen 5000 series will released alongside the CPU:s. Another forum also mentions that that Asus is targeting a late first week of November or early second week of November release which aligns with that. Probably it will be released on November 5th.
As for pricing, on the Swedish sites they are listed for 5790 SEK, or £500, which includes 25% VAT. In UK the VAT is 20% which means the price would land around £480 which is a bit more expensive than the regular Hero. But since it has passive cooling instead of a silly fan, I definitely think it's worth it!