It will be a family reunion for Dante as his twin brother, as well as Devil May Cry 3 antagonist Vergil, will be making an appearance in the upcoming game.
Vergil was first introduced to the series as the main antagonist of Devil May Cry 3, and was a playable character in the special edition of the game. It is unknown if he will be playable in the upcoming game.
The developer Capcom is currently hosting a pre-Gamescom press event in which it is revealing this news, as well as showing off a demo for the game.
(Via ShoptoNews)