As mentioned above, Just Cause 3 is not the only title featured in The Power of DX12 video from Microsoft. They don't say when everything's coming, but the clip includes DirectX 12 footage from the following games: Deus Ex: Mankind Divided, Forza Motorsport 6, Quantum Break, Gears of War Ultimate Edition, Fable Legends, King of Wushu, Ashes of the Singularity, and the aforementioned Just Cause 3. Here's all they say in the description of the video: "DirectX 12 is a ground-breaking Microsoft technology that gives game developers the ability to harness the full capabilities of a PC’s GPU(s) and raise the bar on graphic fidelity and immersive gameplay."