Yes please
Richard Price 1246871052|%e %b %Y, %H:%M %Z|agohover
I think in general at sometime or other all of these will be needed.
The only extra I can think of is similar comparisons and metadata for geographic changes. As OA's are not constant, i.e. some will be split or merged (< 5%) information to identify these will be required. Indeed being able to select these, may even be required as they will potentially be the areas of greatest change.
