Is the upcoming wrath of the lich king expansion going to be the last expansion for world of warcraft or will blizzard continue to support the game with additional quests and new areas to explore in? Does anybody know when the new game that blizzard is working on will be out and what kind of game it will be?

all your questions should be answered here:

http://forums.worldofwarcraft.com/board.html;jsessionid=EAFA0C3A190688A9801C72B289680B79.app01_07?forumId=1793231&sid=1

to answer your question;
No, I heard that there will be a couple more expansions. Blizzard has a whole plan for the coming years. Prepare for about 1 expansion a year up to 6 or more expansions!

they already announced the game there working on, its diablo 3. But im sure theres other games in the works. edit, just realized this was another old thread u necromanced Victus ><

You mind?
75% of the posts are outdated that way :(, and this seems like a pretty recent one compared to the rest ( 9 May 2008 2:29 am)-_-