Hearts of Stone, despite not really adding that much new "stuff", tells an amazing, engaging story that is worthy of the $10 price tag. While The Wild Hunt was the conclusion to an epic, climactic saga, Hearts of Stone is simply another story in the life of Witcher Geralt.
Star Wars: Battlefront does a fantastic job of transporting players into the Star Wars universe for a big initial kicker, but that ultimately fades when you realize how light it is on content and game features. A textbook case of style over substance.
Gears of War 4 is the best Gears yet. Don't expect a revolution, but a refinement of all of the aspects that make Gears great, including an over-the-top, almost cartoonish campaign, and a kick-ass upgrade of Horde mode. It's also a flawless representative of Microsoft's new "Play Anywhere" and Universal Windows Platform initiatives.