Roto: Extrusion Evolved 

Not only that... It gives a much better bang for the buck when you can reuse your block, heater, thermistor and spare nozzles. My Anet AM8 will be much more happy now 😂

There appears to be two holes on each side, not sure if they're threaded but they could potentially be mounting points for such add-ons?

Part cooling is already designed, a pair of duct options. Being uploaded to the E3D site

​@@MrTimElmoreI can't find that anywhere?

​@@thejoetandy printables/model/661438-e3d-revo-roto-part-cooling-fan/files

Part cooling fan can be found here :) - www.printables.com/model/661438-e3d-revo-roto-part-cooling-fan

Part cooling option can be found here - www.printables.com/model/661438-e3d-revo-roto-part-cooling-fan

It was specifically designed for use with one hand? Much easier then competing products for sure - I've had one in my hands before. You put a finger on each side of the filament monitor and then pull with your thumb against the main body, it clips in place itself, open, so you can then pull the filament out without issue, with only one hand. They explain it briefly in the video. See 1:08

I can use it with one hand, with just 2 fingers actually.

Why do you say that, which part of it is not able to withstand reasonable chamber temps, e.g. 60-65C? hard to get hotter without active chamber heating, which opens a whole other can of worms.