Nobody knows for sure. For now part from Rawa Mazowiecka to Mszczonów is under construction, the next part from Mszczonów to Warsaw is yet on preparation stage. It may be even 2014 year when it will be ready...
In attachements is the official, current map (from march 21th) of roads in Poland: the red lines means roads under construction, the black - already in use, green - public auction stage, and grey - preparation stage.