Marys not getting pregnant - is infertile due to pamuk
Branson starts estate managing
Bates gets out, moves back to Downton
Thomas rapes good looking footman, who's too embarrassed to say anything, then kills him in a rage. Bates finds out, saves day.
Housekeeper dies of cancer.
Heir turns up, the last shot is of them all moving out - bates/Anna to run a bed and breakfast in Brighton, lord G doolally, Mary/Matthew to middle class village life - Mary dull, barren.
Fellowes loathes women IMO