Filter the timeline using a Wikidata query
This feature would allow you to use any Wikidata query to filter the contents of the currently loaded timeline.
For example, you may wish to filter the timeline to show only People, or only events that occurred in a particular location (or any other of the infinite number of conditions that can be defined with Wikidata queries).
Negative queries could also be used to remove certain matching items from the timeline.
Ultimately, any user will be able to attach Wikidata based filters to timelines, so other users can turn them on or off with a simple tick box.
Note: this feature will likely share the user interface with the feature "Colour coding events using a Wikidata query" http://histropedia.uservoice.com/forums/246686-general/suggestions/6226760
The user would be able to choose between 'colour code' and 'filter' after entering a query.