I’ll start with the first card I read that made me start to wonder whether she was only Awoken (although that’s probably going to be covered here anyway since I’m intrigued and it’s kind of related too).
Apologies if this is a little…disorganised. I’m attempting to use this to straighten my thoughts up and get some input. 
Ghost Fragment: Fallen 4 alludes to something different about her. Specifically it reads:
So the Kell sends challenge and warning. I AM LORD OF WOLVES, the Kell sends. YOU ARE AN EMPTY THING WITH TWO DEAD SOULS. THIS IS MY HOUSE. THESE ARE MY TERMS. SURRENDER AND I WILL ONLY TAKE YOUR SHIPS.
The Awoken fleet cuts their engines. Drifts. Wolf strike elements, torpedo-armed Skiffs hidden under jamming and camouflage, find their firing solutions.
The Queen’s ship broadcasts. I AM NOBLE TOO, she says, OH LORD OF WOLVES.
STARLIGHT WAS MY MOTHER. The Queen’s ship whispers in eerie erratic radio bursts. Servitors begin to report a strange taste in the void. AND MY FATHER WAS THE DARK.
Here, at last, too late, the Kell begins to feel fear. CALL ON THEM, THEN, the Kell sends, one last mocking signal before death and ruin, AND SEE WHAT HELP THEY OFFER.
So the Queen calls, as only she can. Every Servitor in every Ketch hears it. Every Captain and Baron roars at their underlings as sensors go blind, as firing solutions falter, as reactors stutter and power systems hum with induction. Stealth fails. Space warps. The House of Wolves shouts in spikes of war-code, maneuvers wild, fires blind.
Behind the Queen’s ship, the Harbingers awaken.
The only thing I’ve read about dead things are Guardians or Ghosts.
However, The Coven reads:
The Harbingers, which to prepare?” Shuro was determined to see this all through. Excitement was taught to be kept at bay.
“We cannot send them all.” Portia reminded.
“All but one, the oldest. It stays with us. Sedia, Kalli, Shuro, take the children, tell her they are to be planted into a dead thing to have children of their own.”
The only other references to starlight are from her brother:
The Aftermath reads:
He tried again, to home in on her, to find if she truly gave herself for this battle. He felt close to something, a hum of starlight, then shield deactivation broke his focus.
Ghost Fragment: The Reef 4 reads:
And the prince felt the little hum of starlight ripple through him. The one that let him know she would be pleased with what he had done.
And from the “membrane” we first encounter during The Coming War mission (which apparently requires a living host according to the Ghost scan).
The Taken card reads:
She agrees that what we observe — the apertures, the starlight, and of course the Taken entities — is not Hive magic.
There’s a lot more to it than this obviously but I’m thinking if the “starlight” is the link between the Hidden (not sure if it’s what they refer to as the veil), it would make it a lot easier for communication. It would probably (conjecture mainly) be how they could “speak” to Toland.
