Following features are currently planned but not implemented yet.
They come in a random order in existing and new assemblies.
The list is complete and never can be, it depends on ideas and requirements over the time.
Bubble (quickly big on mouse over and back)
Repeat Animations in general
For events, only once, repeat or forever
Helpers for display busy indicators
A docking library in the Visual Studio style
DragSource and DragTarget for an easy move of data between controls
Drag and drop adorners
Outlookbar (NavigationBr, Accordion)
Resx change at runtime
Load xamls from satellite
Load xamls from local
Maintain current language
Maintain current culture
Named placeholders in XAML
Classic MDI sub window with and own task bar and such
Extention for animations on content switch
Provide non async display of windows
Security gates for network calls
Callout/Tooltip thingy with an arrow pointer
A classical property grid
Keyboard Navigation inside applications
Helpers to work with themes
Helper for a system tray icon
Helpers to work with user assistance. Context related help, tutorial overlay and such.