An ad in China has revealed what appears to be HMD's next device, the Nokia X. Details of the device aren't in circulation at the moment, and rumors claim it will be a mid-ranger instead of the flagship its name tag implies
https://www.notebookcheck.net/The-Nokia-X-is-Nokia-s-next-device-and-it-will-be-unveiled-on-April-27.299344.0.html