We (the Revit product team) are not planning on creating a Mac native version of Revit. **
We have seen a very strong community desire (architects in particular) for Revit on the Mac, there is no doubt. It's also clear how much love there is for Mac computers, but in our thinking, the return on this investment is not justified at this time.
The resources and time necessary to provide a good native experience on the Mac would impact our ability to deliver any other functionality, enhancements and even fixes, for our current Windows product. ** We have decided to prioritize those things on the current Windows product over providing a Mac native version.
We offer an alternative way to use your Mac and Revit: virtualization (VMware or Parallels being options) or using remote desktop technology to remotely access another Windows machine from your Mac. You can also use cloud PC technology (from any cloud PC provider) to access a Windows machine from your Mac. As a Revit subscriber, virtualization is fully supported with Autodesk's licensing. This also means that other types of machines can access Revit this way as well (iPads, Chromebooks, or other ARM based computers).