Everyone got a happy ending.
Thomas with Guy and finding a community (see below about Noel Coward), Mrs. Patmore now being Mrs. Mason, Daisy with Andy (BTW, the actor is married to Laura Carmichael), Edith in a happy marriage with her Marquis Bertie, Cora and Robert happy together as always, Isobel and Lord Merton, and Anna and Bates' having their second child, for starters.
Mary and Tom were single, but happy being parents. Tom had also become a very successful businessman.
And a shout out to them showcasing Noel Coward. Very fun subplot. I love that actor. He played one of Fisk's henchmen in Dare Devil born again. Very different from this character.