User blog comment:B214/Volume 22 spoilers/@comment-95.90.227.243-20160806162232/@comment-9595671-20160806162642

While she isn't officially labeled deceased, I think it's quite likely she is. If the real Lilith where to return then the Dragon Lilith and her might get confused by the readers, even if she gets called Leece by some, she's probably already settled that Lilith is her name.