As various sources estimate, the release of the update on the RU server is scheduled for March 19 (the night from 18 to 19). Two new mod folders will be created: /res_mods/126.96.36.199 and /mods/188.8.131.52.
The EU & NA servers will probably receive the patch the next day, March 20.
Note: the patch brings random rewards, blueprints, new crew skins. Nothing much really.