I really hope they come back. Waifu game where a good amount of waifus in it are dead is silly.

I would have zero problem whatsoever with NIKKE killing off characters, if it weren't for that one character that got a resurrected form while the original is still unavailable (but is still advertised in the gacha!), or that other character who got an upgraded form by fusing with her dead mentor. They mention in that event that resurrecting dead NIKKEs is possible, but as far I know, they haven't done it yet.

If you're reading this and love NIKKE... I wish I did, too.