Halo Wars 2 is a real thing, and there's one big reason you should care about it: Creative Assembly.
The United Kingdom-based Sega studio is best known for its work on the Total War series of strategy games, which combine an epic scale with a jaw-dropping degree of visual authenticity. The original Halo Wars attempted to translate real-time strategy gaming on the Xbox 360 console, so it's fair to say that there's a good creative fit here.