There were so many things I thought might happen, so many hopes and dreams for future storylines or explanations... I guess that is what I'm mourning as much as 'the end' of canon. It's the fact that, with the next 4 episodes pretty much laid out before us, all the gaping holes are clear, particularly those you've noted above.

I think I need a bit to mourn those... maybe up until Christmas when I know for sure all hope is lost. Then I'm going to pull up myself up by my bootstraps and dive into fics and writing and hope that together fandom will do with all that potential what the writers could not.