The new Belmont said to be introduced in this game will be the final boss.Gabriel aka Dracula is clearly very miserable about his immortality and wishes to die, plus it has been confirmed that the game will feature a new Belmont bent on killing Dracula for good. Given that Zobek promises to free Gabriel of his immortality once he takes on Satan and that this game will be the Grand Finale for the Lords of Shadow series, it seems likely that the game will end with a final showdown between Dracula and the new Belmont. If we're really lucky, they might even use "Vampire Killer", "Bloody Tears" or a combination thereof as the final boss music.
Carmilla, Marie and Trevor.They are all a dream that Dracula has while sleeping in that sarcophagus. Conversating with them is essentially his soul-searching, and is what ultimately turns him from vengeance-driven monster into a Death Seeker
The game will have an alternate costume styled after Dracula's classic look from Universal movies and early games.
One of Satan's Acolytes will be ShaftSince he is one of the most renowned Dark Priests in the series, when acolytes came up all this troper could think about was Shaft and if he does appear he will either join Dracula, or try to convert Dracula to Satan's side, considering his previous roles in the series.