MicroPython might look like a fad or an interesting language to play with, but it has a bright future ahead of it. Professional developers will find it interesting to rapidly prototype their systems and test their hardware without having to fully understand the low-level workings of a microcontroller. When it comes to developing a product, you want to fail fast if you are going to fail, and MicroPython provides developers with that speed and agility to quickly try out new concepts before becoming fully invested in them. DIY and maker types will find that MicroPython provides them with a far easier language to use and learn than any of the Arduino platforms that are currently quite popular.
MicroPython won't replace traditional programming languages such as C or C++ in the near future, but slowly, it will gain market share among professional developers...