https://www.cnet.com/news/samsung-foldable-in-phone-early-2017/

That news comes from an unnamed source, speaking to the Wall Street Journal. The source reiterates previous rumors we've heard: It will be a seven-inch model and arrive in early 2019, which means a launch could coincide with Mobile World Congress. The official name is reputed to be "Galaxy X." Because X marks the marketing spot these days.  

Samsung is in competition with Huawei to the finish line in the race to release such a foldable phone. Samsung Mobile President DJ Koh has gone on the record to talk about the company's plans for a foldable Galaxy phone and has previously told reporters to expect a folding phone as early as this year.