I have a feeling she'll get a UR revamp much similar to sterne, maybe together with an update on the story quests with her comeback. Imagine her job description "Black Rose Helena". I'd be whaling to get her no doubt!
She was a highly feared black mage when her youth times before marriage, hence she uses support skills because shes married. They make "Xmas Ramada" so maybe we'll see a new unit like "Young/Black Mage Helena" or something, hopefully they make such things so "Treacherous/Dark Knight Sterne" is viable :)
They made Xmas Ramada due to fan service because Ramada is such a bae. Her most lethal attack is her thigh, just look at it. Also Xmas Macherie exist due to the fact the original Macherie is such a rubbish UR that no one uses her as support. Down the road, we might see a Ramza with original mercenary outfit...
Great Master Ability, Stats, and TMR but lackluster job and sub jobs. Might be worth using with a black mage sub-job instead.
If you want a decent mage with constant debuffer to weaken defense and magic defense she is a good choice plus buff your units with speed ( not the best but better then no haste) not as strong as the other 3 SR mages but helps a lot to soften those baddies