Not only does The Wedding Of River Song tie almost everything up, it moves along the bigger, 50-year story and effectively reboots the show. After seven years of saving the Earth/universe/future of humanity, The Doctor was in danger of becoming ubiquitous. Now, with everybody thinking he’s dead, things will be different. Next year we will presumably be back to covert operations under cover of darkness. And that gives us somewhere new to go.
Amy Pond shows some maternal badassery in not saving the life of Madame Kovarian. Once again, we see that there is nothing in the universe more fearsome than a mother’s love. ‘River Song didn’t get it all from you, sweetie.’