Android Go is variant of Android developed especially for budget-friendly phones with maximally 1GB of RAM. At this moment this system isn't too popular, but HMD noticed potential in it, and probably on market we will see new Nokia phone with Android Go system.
Whole specification of this device and physical look of it is rumored to be very similar to Nokia 2. Probably phone will receive name Nokia 1, and if all reports will be true phone will have display with 720p resolution, 1GB of RAM and 8GB of internal storage. Eventual launch date will be located around March, and for this device we will have to pay around 95$.