Jon Skeet (C# guru who works at Google, for those unfamiliar with C# rock stars) was interviewed on Software Engineering Daily, and his response to this question was basically, "uh, no." Google isn't shifting their focus away from Java/C++ any time in the foreseeable future. (You might see improved support for .NET Core in Google Compute Engine, though.)

https://softwareengineeringdaily.com/2016/09/20/cloud-client...