How should support (message types) for multi-exposure images be added to ROS?

Hi, I’ve been advised from members of the community to propose my idea here. We want to store and process multi-exposure images with ROS messages, how should we do that?

Here’s a link of a discussion which I started on ROS Q&A:
https://answers.ros.org/question/303127/custom-image-message-type/

Details of our company’s needs and proposals are described in short presentation:
https://drive.google.com/file/d/1mNuHuRVKaPqupArNdmGqnGkZh5PasaxQ/view?usp=sharing

Thank you for your consideration and for your help!

Any updates on this matter?