As encourage in blog post http://www.telerik.com/blogs/telerik-kendo-ui-q3-2015-beta-preview-is-out
here is feedback for the current drop.
Kendo UI/MVC Q3 Beta Preview Sample Grid doesn’t work for editing or foreign key columns, values are translated to "Microsoft.AspNet.Mvc.Rendering.TagBuilderMicrosoft.AspNet.Mvc.Rendering.TagBuilder" See attached pictures.