Clicking on a case activity in the history block gives the "regular" activity view

Clicking on a case activity takes you to the "regular" activity view layout for that activity, which works but doesn't allow you to see revisions and also there's no link to edit and also clicking Done takes you to the client's activity tab instead of either whereever you were before or the manage case screen.

Also I'll see if we can suggest a better icon in the history list to represent case - the current one of a person with no pants with a magnifying glass around their head suggests something more like "contact search".