Support for timed ce will reduce a lot of overhead dealing with timed content.
As you know, you'll have to time an article to have timed content on a page. But if there is only one element which has to be timed you have to duplicate the other.
There is an extension which try to handle this, but it'll remove content after it's already read from DB.
Content elements can now be shown/hidden at a certain time (see #4187)
Implemented in f0de9cd.