We do have anything to share publicly at this time, if you would like to see UI for Xamarin support for WPF target, submit a Feature Request in the UI for Xamarin Feedback Portal so that that development team is aware of your interest.
Once submitted, you can up-vote the item by clicking "like" and select "follow" to be notified of status changes.
Regards,
Lance | Tech Support Engineer, Sr.
Progress Telerik
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