Does anyone know when the next (last?) book in Robert Jordan's Wheel of Time series is expected out?

The only thing I have come across is the working title amd proposed date of release of the next book:-
A Memory of Light (working title) (2009)
Hope this is helpful

On chapters.indigo.ca Wheel of Time #12 is due out January 1, 2008

Robert Jordan the writer died there is rumor some one else will finish it