Rewriting scene parsing has been on Trello board in Pool of Big Ideas for last couple versions now (I think dating back to 6 or 7 as far as I remember) but unfortunatelly it never made it to the developement stage? For rendering animations e mostly moved to the render farm so this problem doesn't affect us a lot anymore (farm is using hundreads of nodes each rendering only couple frames), but it was definately annoing to see the rendertimes grow frame after frame while we were rendering locally.
