http://www.theprovince.com/Vancouver...946/story.html
Just seen this article from The Province. Originally were to be taking place right now in Japan, but due to the earthquake, tsunami, and nuclear fallout - it's been canceled.
Would be held in the Pacific Coliseum, either in late April or late May.
Would make sense - the rink had the Olympic events last year there, and it easily could be upgraded again to hold the events.
Although there may be scheduling conflicts with the Vancouver Giants playoffs if they go 3 rounds deep or so - I would expect they would relocate to either GM Place (Rogers Arena) or back to the Langley Events Centre if need be.
According to wikipedia, Vancouver and 5 other cities have applied to host the events on a short-term basis.
http://en.wikipedia.org/wiki/2011_Wo..._Championships
In another note - London, Ontario (my hometown) will be hosting the 2013 World Figure Skating Championships, so that may impact where this event would go.