As 2018 approaches, who or what, are we at risk of losing - and what will be taking their place? With the cheery nanny back on our screens next year, we discover the link between Mary Poppins and women’s suffrage. We learn how plans for a new coffee shop in Milan are controversial. Plus a rival Chinese city is waiting in the wings to steal the limelight from Hong Kong. Anne McElvoy and Daniel Franklin host the third of six special episodes looking at The World in 2018.