Kdenlive is refactoring its timeline to be based on Qt's data models and a QML view. This work is not yet finalized so any help there is appreciated by the developers.
There is a board tracking the current blockers for a first release with this new timeline:
Bug reports can be a great source of information, but usually finding the information requires extensive work in reading through all of the discussions and understanding the details about it.
Could it be that machine learning can be used to extract meaningful information out of that? That's what this project is about.