Note:

To switch between new and old wow character models, look at these images
http://azerothica.com/images/switch-old-new-model-part1.jpg
http://azerothica.com/images/switch-old-new-model-part2.jpg

How to install:

Read installation instructions inside the zip file that you download.

Download Warlords Non Model Changed Hairy

Download Warlords Non Model Changed Shaved

Hairy Version Preview - Click Here

Warlords of Draenor models - hairy version

New Character Models – Hairy Version

Shaved Version Preview - Click Here

Warlords of Draenor models - shaved version

New Character Models – Shaved Version

Credits:

The credit of the content within this nude patch, which is the skin textures goes to:

(These people are on the Darknest forums):

Textures:
Esidien:
> Human
> Worgen
> Draenei
> Dwarf
> Gnome
> Pandaren
> Succubus

Dyable:
> Night Elf
> Blood Elf
> Troll
> Orc
> Undead

Zilem:
> Goblin
> Tauren