That seems plausible enough. Cause the person in the transcriptions said it was something he hadn't seen before. Well... we've had the reverse effect of what you just said before.
Explanation:
2008, we were sucked into a world- Bloody Mary's world inside the mirror. If the lantern acts as a sort of Pandora's Box idea instead of sucking/bringing you into the world inside the lantern (which is what happened in '08, except with a mirror) it will unleash the inside world upon you. Which... technically we haven't seen before.
I don't know. I could be off track. The fact that the person, whomever it is, stressed that it was something unseen before leads me to believe that it's gonna be more in the vein of unleashing something, instead of bringing you inside, because as stated before we have done that before.
Plus Pandora's Box has to deal with Greek Mythology (Gods/Goddesses, etc) and many of this years clues seem to have some kind of religious connotations with them. Gabriel Fell, the alpha and omega symbols, etc.
But if it is in the style of Pandora's Box, I'm interested as into who put all the "evil" inside of it in the first place.