No more undead???

Q u o t e:
When Arthas is killed in-game does that mean that undead will be no more?...

Interesting concept to think about isn't it? But does killing Arthas really mean the undead cease to exist? They existed when he was just a paladin didn't they?

There are things to ponder here but most importantly...

Does the Lich King cease to be when the vessel is destroyed?

I know that people have preconceived notions of what should be and what is to come, but try to open your mind to the possibilities a bit. Some of the best stories of all time have unexpected twists and turns. Stories need to progress to continue to live and the status quo isn't a very good way to maintain progression. I have no idea what could happen next, but I'm willing to wait and see.