I work a lot with drones. I made some custom drones.
The big issue I encountered is getting an extra precise IMU which is robust against mechanical vibration, high accelerations and noise.
In September 2018 Bosch has released a new 6DoF IMU (accelerometer and gyroscope) the BMI088, which is the successor of the BMI055. It is specific to drones with filter against mechanical vibrations.
I said, let's give it a try for my first project in 2019!
For my drones, I am designing a 13x redundant IMU. Each one will be configured with different sensitivity.
The data will be gathered using the SPI link and processed using Kalman like filter.