.NET Core 2.0 support System.Configuration's "ConfigurationSection" ?

We're porting a .NET Framework 4.5 .dll to .NET Core (1.1 right now). At present we've got a custom configuration in the app.config via a customConfigurationSection containing custom ConfigurationElement from theSystem.Configuration namespace.

We also noticed that the .NET Core 2.0 Roadmap says

.NET Core gain over 5,000 APIs from .NET Framework as part of this work making it a broader platform.

So will .NET Core 2.0 add back support for the traditional ConfigurationElement and ConfigurationSection? That way we could skip .NET Core 1.1 and it's intermediate porting efforts.