.NET Framework isn't going anywhere. It is and will remain the basis for Xamarin.
.NET Framework 4.8 will be the last release though. Innovation will happen in .NET Core and the packs available for it (e.g. the Windows Desktop Pack).
.NET Framework 4.8 will be the last release though. Innovation will happen in .NET Core and the packs available for it (e.g. the Windows Desktop Pack).
Source: I'm working on the Mono BCL+Tools team at Xamarin/Microsoft.