Radeon ProRender 2.0 is a work in progress, and we have completely revamped the core renderer. Areas of improvement are render speed and memory usage, but artists should be most excited about the better noise convergence and more flexible shader system. Stay tuned for more updates in the latter half of 2019!
We were demonstrating this at SIGGRAPH with the Motonui Island Scene Rendering on 8x AMD Mi60 GPUs in real time.