There are a few unreleased heroes that have been found within the game files. Some of them have all of their skills and SI items, while others only have a story.
Keep in mind that the unconfirmed heroes might not ever be released or could be completely redesigned in the future.
Her skills, story and signature item have all been shown in the game files. It seems that she’s been delayed, probably due to the fact that there are a lot of lightbearers in the game already.
Son of Shemira & Niru. The image above is official artwork released by Lilith for Christmas. Check the picture above the fireplace.
This hero is probably not going to be released anytime soon though.
Shown in the trailer for the Korean version of the game. He could be a Seirus skin, or perhaps his brother.