From the press release:
Following Legendary's and Warner Bros. Pictures' 2014 success with the global reinvention of the Godzilla franchise, the companies have come together to create an epic, new shared cinematic franchise. All-powerful monsters become towering heroes for a new generation, revealing a mythology that brings together Godzilla and Legendary's King Kong in an ecosystem of other giant super-species, both classic and new. Monarch, the human organization that uncovered Godzilla in the 2014 film, will expand their mission across multiple releases.
The new trio of films begins in 2017 with Kong: Skull Island, then Godzilla 2 in 2018, and finally Godzilla vs King Kong in 2020.