Day before the Mobile World Congress 2017 officially starts, Nokia plans to announce their new smartphone. In a video highlighting the Nokia 6, the company has mentioned that "more announcements" will follow on February 26. It is believed that the phone in question is a flagship Nokia device that is powered by Qualcomm Snapdragon 835 chipset.
There should also be more details about the company's plans for global release of Nokia 6, which is currently exclusive to the Chinese market. By the time MWC 2017 kicks off, we'll probably hear more details about the event.