According to numerous rumors there might be no follower for Microsoft Band 2. This is still not officially confirmed by Microsoft, however, this seems to be only a question of time.
Personally I cannot really follow this strategy step of Microsoft. Weak market? This is the only explanation I can think of. Yes, Microsoft Band 2 is not perfect. But still it has its fans. Currently, its the only device on the markt with such a wide range of sensors.
I had also an opportunity to play a bit with its SDK. It makes a pleasant impression. The only shortcoming I can point on is the way for accessing the health data. It is only possible to access the data in real time. There must be always a bluetooth connection between your iPhone/Android/Windows app and the band, during the native “Microsoft Band” app can access the internal memory of the band and read data stored on it.
If the next generation of the Microsoft band had been extended by an interface for accessing the data stored on the band, it would make it to an attractive wearable. At least from the app developing point of view.