Samsung Galaxy S9, S9 Plus reportedly in full scale development under code names Star and Star 2
Second, Samsung has reportedly accelerated its component production and put down a "fairly advanced" development period before proceeding to full-scale development, which will make it possible for the Galaxy S9 to start production as early as later this year. This means Samsung could potentially announce the Galaxy S9 earlier than usual next year. However, we find this information highly speculative and it might be best to consume it with the proverbial grain of salt.
In advance, we also know the Galaxy S9 will be powered by Qualcomm and Samsung's next-generation 7nm processors. Mass-production of both chipsets is scheduled to start in early 2018 at Samsung's facilities. Recently, the company spun off its processor fabrication division into a separate entity as the business has become highly lucrative. We'll be sharing other Galaxy S9 news as they come.
source: The Bell (Translated) via Android Pit