When clicking on a thumbnail, the asset page should retain the tag context for “next” and “previous” assets. As an example, when you navigate to Who/Smith/Alice, and click an image of Alice, the navigation buttons should go to the next-younger and next-older assets tagged with Alice. (The current implementation always defines “next” and “previous” by chronological order). Switching this context can be done via the bottom streams panel, or a new pulldown added to the asset header.
(Taken from the What’s Next page)