The first cover features all the members of the Avengers for the new film: Scarlet Witch, Quicksilver, Thor, Iron Man, Hulk, Captain America, Black Widow, and Hawkeye. In the background, you can see a whole slew of Ultrons flying around, probably just about to destroy the world.
The issue covers the upcoming May film. In addition to the Avengers cover, there's a special cover for subscribers only. It's a pretty sweet close-up shot of Ultron.
This issue of Empire will be available on January 29th, and Avengers: Age of Ultron hits theaters on May 1st, 2015.