Source: Steam
Also Valve's Dave Riller is making a brand new Hostage map. The small close quarters combat hostage map is set for a release in February. So stay tuned for more, because Valve is planning to release new on a more weekly basis.
The official Counter-Strike Bot will be released for Counter-Strike: Source on Monday (January 17th). The Bot features enhanced abilities and will be available for all owners of Counter-Strike: Source. Also included in Monday’s release is an updated version de_tides, rebuilt by Turtlerock Studios. For more information or to purchase your copy of Counter-Strike: Source, please visit www.steampowered.com.If you start up Steam you now get to see a preview screenshot of the upcoming new map: