I've solved this!
First. Install mesa-utils if no installed:
to test fot OpenGL support.
sudo apt-get install mesa-utils
Second. Run a check to see if you have OpenGL support:
glxinfo|grep 'direct rendering'
Third. Run to see how your video card renders and its FPS for the render.
If it appears you have OpenGL support and all is good then add to the WoW launcher the -opengl parameter. For example
'.wine/drive_c/Program Files/World of Warcraft/Wow.exe' -openGL
IMPORTANT: If you get pixelated trees, you have to restart and Log In with Ubuntu-2d session.
After doing all these instructions my problem is solved !