Okay this may not be a meme but it is a theory. As seen with the hosts their pupil colours change with their possession. Beforehand they’re black, excluding Ava since she was born with Wrathia possessing her as seen above.
With the Arrow triplets, Raven and Crow have black pupils whilst Magpie has blue, this leads me to believe that the reason for her disappearance was to complete a pact because she is a host.
Now she might not be one of the seven sin hosts as she is not listed with them. Even so there is a possibility she could be the seventh host due to similarity in hairstyle and stature but it is unlikely.
Yet, Wrathia did mention she had many allies and that means she might be pacted to a lesser ally.
And for those who mention the background characters from the titan headquarters that have different pupil colours, those are the designs for comissions that Michelle did for the kickstarter and so might not be canon.
Does anyone have any ideas to build on this?