Tamron published a video interview with their engineers. About the future development they say (google translated text):
Tamron will continue to listen to the voices of our customers and develop unique lenses that are unique to Tamron. And I would like to incorporate customization functions into all models of future lenses, improving optical performance, further maximizing AF speed, improving operability of zoom ring and focus ring, texture and grip. We would like to make further improvements such as improving the feeling.
In particular, “TAMRON Lens Utility” is still a developing technology, so we would like to hear your voices and requests and add it to new functions.
In addition to improving optical performance and AF performance, future models will be equipped with a lens customization function for all lenses. We are waiting for your requests for lenses and customization functions.
As a reminder: Tamron is expected to announce five new lenses this year!