There were rumors about the announcement of Mafia III but just now, the game is officially confirmed by 2K Games. Poster for the game is also published by twitter account of 2K Games.
The news about the game reveal was announced by 2K UK on the Twitter, stating that the game trailer will be revealed worldwide on August 5, 2015 at 1 PM BST.
— 2K United Kingdom (@2K_UK) July 28, 2015
There were rumors all over that the game will be revealed at GamesCom event but today, we saw official confirmation from 2K Games. Stay tuned for more!