https://www.gamespot.com/articles/dead-island-2-is-still-in-development-publisher-de/1100-6460224/

It has not been an easy road for Dead Island 2. The game was first announced in 2014, but since then it lost its initial developer and faced considerable delays. Despite that, the game's publisher, Deep Silver, is assuring fans that the game is still in development and will definitely still release.

On Deep Silver's Dead Island Twitter account, the company has been responding to many tweets, asking if the game is still in the works. While it hasn't shared much more information (and nothing on a possible release date), it has said repeatedly that the game is still in the works and to watch the Twitter account for more details at a later date.