IDEA - Motion Charts
In the SHOW ME chart types allow users to create a D3/JQUERY Motion chart where a continuous date is used with at least one measure and one dimension.
Some additional controls would be needed to control speed on the marks card but it seems doable.
I am the lead BI Analyst for Kellogg, tableau server admin, and chief advocate for Tableau @ Kellogg. I get requests for this type of content all the time, and while I can create some of this in pages, having the ability to animate it by default gives the chart a more specific purpose and lets users know that what they are looking at has something to do with change over time.
DUPLICATE IDEA HERE: