Thanks to Strawberry Singh for the info! You can now apply to join Project Sansar and preview the new virtual world as a creator:

Apply for Project Sansar Creator PreviewProject Sansar makes it easier than ever before to create, share, and monetize your own social VR experiences. We’re seeking skilled 3D content creators to be among the first to use this powerful new platform in our Creator Preview….

Source: Apply for the Project Sansar Creator Preview