The release date was provided by Amazon (still waiting for rondomedia - SCS's German publishers to reply). It's not official
yet and can also be changed, just like all release dates. Nothing is set in stone unless confirmed by SCS Software (link in my sig)
However, I do have contacts with people testing the game, and also various other people "in the know" and it's likely (not certain) we could see it around Easter time. An Easter release date has been speculated for a while though and isn't really new information - It's posted on various ATS Facebook fan pages and sites.
Feel free to discuss the release date, but remember we are only a fansite, and anything posted here is already in the public domain.