How did Warlords of Draenor Change World of Warcraft? Part 1/2

Well, here we are. Warlords of Draenor. Im quite excited to really dig into this expansion and see what changes it made, and honestly it had more good points than I remembered.
The problem was it just didn't really have much overall.

Let's do this
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Lord of War:

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Music used, In order:
Intro: Times Change, WoD Soundtrack:
A light in the Dark:
Stormshield Music:
Frostfire Ridge Music:
Outro - A small track from Winterspring, "Winterspring 5"
@27min
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