Our CSEs have requested the ability to see the sentiment of a Timeline entry from the Timeline view without expanding / opening each individual timeline entry. This would help them more easily identify those Red / Yellow timeline entries without each of them needing to create a custom view.
To take it a step further I think it would be beneficial to give the admins the ability to control what fields are initially viewable from Timeline similar to the Person object where we can chose the list view, details view, etc..