Update: This has now been confirmed by Deep Silver, with a long list of improvements that are being made to the two games as they make the jump to current gen consoles, including a new lighting engine, a bunch of finer graphical improvements (HBAO, AA, etc.) and an improved UI.
The collection is out on May 31st for PS4, XBO and PC, at a suggested retail price of $39.99/€39.99/£29.99, however, Dead Island and Dead Island: Riptide will also be available separately for $19.99/€19.99/£14.99. The extra penny for buying them together gets you a copy of Dead Island Retro Revenge.
The original story follows.
Three months ago a Dutch retailer listed “Dead Island Redux” for PlayStation 4, Xbox One, and PC, and then two weeks ago we had “Dead Island Retro Revenge” pop up on a ratings classification. These two stories have now merged with the listing of the Dead Island: Definitive Collection, which includes Dead Island Retro Revenge.
According to Best Buy the pack will be out on May 31st and includes Dead Island: Definitive Edition, Dead Island: Riptide Definitive Edition “and a brand new stand-alone 16-bit game Dead Island: Retro Revenge.”
Retro Revenge is described as endless runner / side scroller set within the Dead Island universe. The two older games will be “fully remastered” and include all the DLC and patches.