Interest for the new instance dungeon Sunwell Plateau began even before patch 2.3 for World of Warcraft was released. Due to the pressure from players, Blizzard was forced to divulge that this area will be activated in patch 2.4 before 2008.

With that said, WoW players over at the MMORPG's official forms are once again asking Blizzard for more information about Sunwell. Blue poster Nethaera was able to pick up the thread and responded:

Oh yes. We've been working on it. It's pretty. Shiny. Glowy. Sparkly. Oh so nice. All that beautiful Blood Elf architecture to feast your eyes on. There you go. Information!

I'm sure you were looking for a bit more, but we don't have it to share just yet beyond what has already been shared.