Above, we have a circa-2010 aerial view. Today, W E M encompasses a total of 5.3 million square feet (with 3.8 million being devoted to retail). It is the largest mall in the Western Hemisphere, has the world's largest indoor amusement park, the world's largest indoor lake and the world's largest parking area (which can accommodate up to 20,000 autos).
Photo from Google Maps

During 2011 and 2012, the three original sections of the retail hub were given a 100 million dollar face lift. 
Drawing from http://www.wem.ca (Official West Edmonton Mall website)

Amenities such as this "stunning choreographed musical dancing fountain" were installed.
Drawing from http://www.wem.ca (Official West Edmonton Mall website) 

Three official trademarks have been used to promote the mall since its inception in 1981. Here we see the latest logo, which debuted in 2013.
Graphic from Triple Five Corporation