This would be TOTALLY Amazing!!!
Corona is hands down THE Best renderer in the market right now for Architectural visualisations (YES, even better than VRay).
And this is coming from a long-time user of VRay and pretty much most professional rendering programs out there.
The main selling points are that it's has a short learning curve (much easier to come to grips with) than VRay, with much better post-processing tools, and better image/color mapping handling as well as an Interactive renderer that matches the final output. And it's fast.
Faster than VRay even, in some instances.
I always think of it as, imagine if someone combined the intuitiveness and simplicity (render controls) of Maxwell render with the speed of Vray.
However, the only drawback is that you can only use it via accessing it through 3DS Max (or Cinema4D) for which are the only two programs that they currently have plugins for. For which reason, it would be really awesome if we could have a bridge and direct connection from ArchiCAD to Corona that would allow us to produce images like this (below) and possibly even use entourage (Corona proxy trees and and vegetation) as reference objects withing ArchiCAD.
I had been on their forum requesting an ArchiCAD bridge a while back, but I didn't think it stood much of a chance of getting considered. If they need any feedback, I hope you redirect them back to this forum, and I also hope the GS guys can be helpful to them in this regard.
I really hope this comes to fruition.
Just a few of the images I've been able to do in Corona with a short learning curve.
It's a really amazing render engine, and in the last couple of months to the last year and a half has seen a massive exodus of former VRay users abandoning VRay to be Corona users instead.