A second season has been announced for The Man in the High Castle [slashfilm.com], an Amazon original streaming series based on the novel of the same name by Philip K. Dick. Amazon released the pilot of the series in January of this year and it quickly became Amazon's most-watched pilot ever, leading to greenlighting for nine additional first season episodes which were released in November.
Both the book and the movie take place in an alternate timeline where Nazi Germany developed the atomic bomb and the Axis powers won World War II. It's 1962, and the United States has been carved up into a Nazi-ruled regime in the east, a Japan-ruled regime in the west, and a central neutral zone. Germany and Japan are still officially allies, but are beginning to look at each other warily and war between them is becoming a possibility. Meanwhile, a contraband film called The Grasshopper Lies Heavy (modified from a contraband novel in the original book) circulates which details another possible reality in which the Axis did not win the war.
My understanding is that production for the first season was expensive in terms on money, resources, effort, and time, so I expect it will be awhile before the second season is available. If the second season is like the first, it will be well-worth the wait, and it will also be over all too soon, as ten episodes don't take very long to watch when the show is this gripping.