WPA is WiFi Protected Access - it's the most common method of encryption used to secure a wireless network. If you have a laptop or smartphone and you're trying to connect to a WiFi network, you'll usually need to enter a WPA key (or password) in order to connect to it.
In the live-action adaptations by Sir Peter Jackson, Sauron is portrayed by Benedict Cumberbatch in The Hobbit trilogy (who also portrays Smaug in the same trilogy) and was played by Sala Baker and voiced by Alan Howard in The Lord of the Rings trilogy.
Zordon will be played in the film by Bryan Cranston, and he might have just confirmed the Red Ranger theory is true. Cranston recently signed a copy of his memoir A Life In Parts for Power Rangers Megaforce actor Andrew Gray (via Power Rangers NOW).