I was wondering the same question; especially since I find bongo a little cumbersome.
I managed to “frankenstein” different plugins together and it worked the one time I needed it. the GH definition moved the camera on a path, issued a new render through GRay/ VrayfGH,
As for motion blur … I don’t know.
Currently I am traveling and will have access to my files next week –
Animating walkthroughs with complex camera paths will be possible in V-Ray Next for Rhino via the new V-Ray Timeline Grasshopper component.
This will be so good! Any word on VRayCloud Support?