[terrajobst]

> What I want to know is, will the sync (not async/await) methods be available on Linux on .NET Core?

Yes.

> In an ideal world the old sync APIs would just work and we'd be able to move forward with .NET Core as it stabilizes and get off Mono without a major rewrite.

Yes, being able to move forward with existing code is the primary reason they were added to .NET Standard.