Headscratchers / DC Universe Animated Original Movies
Why did they stop adding DC Showcase shorts?
The last one was released on 2011. So, I guess it has something to do with the New 52.
Why are 90% of their films about Batman, Superman and Justice League? Don't tell me it's because others don't sell, since as of this writing Green Lantern: First Flight and Wonder Woman are the 5th and 8th highest-grossing of the 25 films they've released.
Sales figures are constantly updating, and as older media they've had more time to sell. There is also the difference between 'selling a lot', and 'selling as much as the executives want them to'.