I've been playing World of Warcraft since The Burning Crusade, been hooked on it ever since. I've tried multiple MMOs. Short answer: No. Long Answer: World of Warcraft has a strong and dedicated fan base, Cataclysm has reaffirmed most peoples faith in Blizzard and World of Warcraft, and many subscriptions have been renewed. World of Warcraft is now riding high, with revamped mechanics, revamped levelling, and revamped difficulty. Levelling is no longer a grind, although I guess everything you do in games can be considered a grind, but it doesn't actually feel like one.
I do not understand why people feel the need to hype up games in order to try and discredit World of Warcraft. In reality all you are doing is going to piss off a lot of people by saying a game will 'kill' World of Warcraft. World of Warcraft is going to be around as long as Blizzard want it to, and until Titan World of Warcraft will be the #1 MMO. Yes you may not like Activision, you may not like Blizzard, you may not like World of Warcraft, but if that is the case, please enjoy your World of Warcraft clone in peace, and stop annoying the rest of us who are perfectly happy with World of Warcraft.
This is a rant on people in general who hype up new MMOs, I recently just came from a Thread on another website where someone was talking about how Rift is going to kill World of Warcraft so I'm still kinda annoyed about that.
EDIT: Also, World of Warcraft is strong in storytelling and has a rich lore, both of these are used from the creation of your character. Take Undead for example, you are ressurected, you are told that due to the fact that the Forsaken cannot reproduce they are starting to ressurect their own undead. You are immediataly shown the plight of your race, and you immediately get to start working on helping them out, and through phasing you can actually see your handiwork. You can see how you impact your environment, like an ordinary game, so it's not like 'Oh I killed 100 undead and there is like 100 still over there' it's more like 'AWESOME I just got to jump in a cannon and slaughter 100 undead and now the earth is all covered in small craters and there are no more undead!'