The Version 1.0 of Rhino.Inside.Revit has been recently released.Rhino.Inside.Revit combines the best of Rhino, Grasshopper, and Revit® into one application. This technology in combination with Lands Design for Rhino makes it possible to exchange Lands elements, such as plants or terrains between Rhino and Revit.
This workflow is available thanks to the Lands Grasshopper components.
Check this example of sending a Lands terrain from Rhino to Revit, which is generated as a topography object in Revit.
You can download this new version of Rhino.Inside.Revit here.