Hi Mike, welcome to our forum!
We are currently working on the multi-GPU and few other improvements for 0.48 such as better IPR, better look and better out-of-core.
This should be more interesting. However, many more things are planned for alpha version.
Please, don't hesitate to write what you want to see in the renderer! We listent to it. However right now the amount of accumulated requests is so large that we can't do them all immediatelly. But step by step these requested features will be performed. And of course we need to make the integration with C4D better, tighter and more native.
For example, I am desperately can't wait when will work on hair&fur and particles Because it is hard and very interesting. The other things are much easier.
Awesome what the package has for the bump channel, I never would have even thought of such application, very ingenious.