Are you planning to add support for C# 7.0? There are a lot of interesting new features!
Hint for the platform developers:
One of the most interesting feature of C# 7 is ValueTuples, i.e.
var (x, y) = GetCoordinates()
but due to compatibility issues, to compile this code you should reference external library https://www.nuget.org/packages/System.ValueTuple/