I am sorry to tell you,but Deathwing isn't just being put in as something bigger and badder. He's been a big and bad for a very long time within the story. You just haven't had the misfortune to deal with him directly though you've had some interactions with his children and minions. And the power leveling service can get you higher level , so you will find more interesting kingdoms in the Deathwing.

 

Arthas is the most promininent "bad guy" currently for a few reasons. One being he was someone you interacted with a lot in Warcraft 3: The Frozen Throne. His story itself also struck a chord with many people. Plus, (I believe) our development teams who worked on The Frozen Throne and the various aspects of the expansion did a pretty amazing job with making the continuing story come alive and move forward. So the epic nature of what has transpired seems untoppable to some. We like to challenge ourselves to do more work and better service for you and our core service is wow power leveling. And if you get high level you will be more interested in this game.

 

That said, there is a lot of story that is still being explored and left to explore. To diminish that story to only being about Arthas and the Lich King is a bit short-sighted. There are many prominent figures in the lore and many stories and stories within stories to be told.