Possible future Rockchip based Pinebook?

[Luke]

200€ is already intel atom territory, so wouldn't make much sense unless you absolutely want arm

Maybe, but does the Atom have passive cooling and comparable performance?
Because the performance of Pinebook is, honestly, very poor for normal work, even for browsing. I am now typing this from my Pixel C running Ubuntu and it feels like a real laptop.

Yes,  a lot of  atom based laptops are passively cooled. 
Im currently rocking a z3735f laptop as a replacement for pinebook (was actually cheaper) and its much faster than a53 chipsets out there.

In generic benchmarks the RK3399 beats the z3735f hands down. So, if a high-end rk3399-based and nicely finished Pinebook would sell for ~200USD then its still a value proposition. But as I already said, its a congested segment of the Laptop market.

Also, unlike the current Pinebook that is aimed at tinkerers and is effectively a toy of sorts, a rk3399 Pinebook would actually have to compare up against real laptops.