While the news is not officially confirmed, the source seems pretty legit. 2nd March is the date rumoured by ETNews, whose ”man on the inside” is supposedly a high-ranking senior Samsung official. ETNews also beleives that the phone will cost even more than the Galaxy S8, with price tag of something between $880 and $920.
For more Galaxy S9 news, check out my earlier article on Galaxy S9’s double security measures.