http://www.mmo-champion.com/content/2244-Patch-4.1-PTR-Notes-April-8th-Update-Patch-4.1-PTR-Build-13850
Visual Settings Updates
* Removed the red bar preventing the overall graphics slider from going to ultra based on computer specs.
* When the user moves the overall slider to a setting that would have previously been prevented, any option that can't go as high as that setting will get the warning icon with a tooltip explaining why it can't go higher. For example: The user sets the overall slider to Ultra and the water setting can only go to Fair. The water setting would automatically switch to Fair.
* Support for DirectX 11 can now be found in the Advanced tab of the Options screen.
I just thought this was funny and decided to share. Granted, WoW DX11 will probably still look relatively gross and outdated like it already does in its DX9 format...