Today a new version of CG4T is released: version 1.4! CG4T now supports DXA ViewModel class generation:

You can find the new version in the Visual Studio gallery: https://marketplace.visualstudio.com/items?itemName=vs-publisher-740338.CodeGenerator4Tridion#overview
Or you can simply install within Visual Studio 2015 or 2017:

Happy new year to everyone!