Yeah looks like it's a thing. Everyone who beat the game knew that Vergil does exist with its own mechanics and moves in the game in the form of a boss but seems like the code for the playable version is there as well.
Apparently what's currently datamineable from the game indicates that it's not enough of a moveset to warrant him being an actual playable character right now, so people are speculating the code will be finalized when the Bloody Palace DLC drops, bringing playable Vergil with it.
Apparently what's currently datamineable from the game indicates that it's not enough of a moveset to warrant him being an actual playable character right now, so people are speculating the code will be finalized when the Bloody Palace DLC drops, bringing playable Vergil with it.