My money is on April 28, 2009. The exact birthday of Guild Wars 1 (as in official release date

When do you think?
I also personally think that NCSoft needs to kick ANet in the butt about this, considering recent negative events affecting the company (Lord British leaving, Tabula Rasa shutting down, the reorganization of NC West, the whole Worlds.com lawsuit, etc.). NCSoft needs some emotional boost for the stockholders, and a big PR event for the sequel one of their best selling games makes sense to do so.