The Russian site Kroupski (google translation here) interviewed Mr. Michael Guthmann from Olympus. And these are some of the key info:
1) It’s not possible to add the 40MP High resolution feature on current cameras via simple firmware upgrade. It”s not just algorithms that is needed. ON the E-M5II Olympus improved the positioning accuracy of the stabilization system. Mechanical components were changed and optimized.
2) Olympus is not sure if they will add the 40MP feature on future low-end cameras too.
3) Olympus recognizes there is a request for 4K on Olympus cameras. But they cannot guarantee the E-M1 successor will have 4K. Olympus does not see great potential for 4K at the moment. Once the market is ready for it, they will make 4K. Panasonic, Sony, Samsung are “forced” to add 4K on cameras to create content for their 4K TV’s.
4) Olympus is not worried about the fact that Full Frame cameras are becoming cheaper. Because they think what matters is the camera+lens performance and size.