Dead Island 2 is still in development, according to a Tweet sent from the official Dead Island account.
Dead Island: Survivors, a free-to-play tower defense game for iOS and Android, officially launched, bringing with it questions about the status of the franchise’s long quiet project, Dead Island 2.
On the official Dead Island Twitter account, replies to the Survivors release Tweet consisted some of questions as to when/if the game would be headed to Nintendo Switch (No plans), but mostly there were concerns about the status of Dead Island 2.
Source: IGN.com Dead Island 2 "Still in Development" After Mobile Game Fears