They posted this on the FSE forums
Expected time of Release
Postby cenzila » Wed Apr 18, 2012 5:50 pm
Expected time of release for Napoleonic Wars on steam is:
19th April 2012
6pm British Summer time, United Kingdom (BST/UTC+1)
7pm Central European Summer Time, Western/Central Europe (CEST/CET+1)
1pm Eastern Daylight Time, East Coast USA (EDT/EST+1)
This is not a official time of release but due to steam updates will most likely be the above times for release on steam.
Hope this has helped you impatient lot hoping for release copies
Cenzii