At the Build conference in May 2019, we mentioned that, after we add WinForms, WPF and Entity Framework 6 to .NET Core 3.0, we do not plan to add any more of the technologies from .NET Framework to .NET Core.
This means we will not be adding ASP.NET Web Forms, WCF, Windows Workflow, .NET Remoting and/or the various other smaller APIs to ....