There have been four different FCC listings that reveal the Nokia 2 model numbers, these include the TA-1007, TA-1029, TA-1023, and TA-1035. Not much else is known about this phone except that it will be a very budget phone that will be even less powerful than the Nokia 3.
Based on rumours, the phone is said to come with a Snapdragon processor which is assumed to be the Snapdragon 210, 1GB or 2GB of RAM and a 2800mAh battery which should give this phone a significant amount of battery life. Other than that, it is expected to come with a 5-inch display with a resolution of 720p or lower, 8MP rear camera, 5MP front-facing camera and will be running on near stock Android which is a good choice seeing the response of the Nokia 3, 5, and 6. If the phone releases at the end of the year, there is a very high possibility that it will be shipped with Android 8.0 or will be upgradeable to the latest Android.
In the case of the Nokia 8, the high-end smart phone is scheduled to be released on August 16 based on rumours and leaks previously.