The Nokia 2 through 9 will sport the spectrum of Qualcomm SoCs from the Snapdragon 212 up to the 835. The lack of a "Nokia 4" is likely due to the unlucky number in many Asian cultures.
https://www.notebookcheck.net/Leak-reveals-all-the-Snapdragon-SoCs-coming-to-Nokia-smartphones-this-year.234256.0.html
It's kinda predictable when they're going to announce these phones. IFA