Guess Dying Light really raised the bar and Yager failed to catch up. Or Deep Silver realized they visioned Dead Island 2 the wrong way and felt baffled with the game's future direction after seeing how good Dying Light turned out to be.
Anyway, Dying Light is fantastic. From a developer's perspective, Techland did a wonder with Dying Light. They shipped their next-gen debut title with modern rendering techs, open world AI planner, solid parkour system, amazing night gameplay, way better storytelling than the original Dead Island. They even released a full-fledged editor, and all of these are under a very effective development cycle.
Sorry for Yager and shame for Deep Silver.