If "The Devil's in the details" is hinting that this is all
Mephisto. What is his purpose and goal in this event?
Agnes potentially being the witch
Agatha Harkness. What is her purpose and goal in this event?
The bottle of wine being labelled Maison du Mépris, a reference to the
House of M which is also about Wanda recreating a new reality, could this be what Wanda is doing?
How is Jimmy Woo able to speak to Wanda through the radio and why?
What does Darcy Lewis have to do with this?
Why is "Geraldine" from Captain Marvel stuck in this reality too?
What is with the creepy cult chant "For The Children" and could this be about Wanda's twins? Has she made this new reality with Vision still alive "for the children?"
What does HYRDA, SHIELD, and/or SWORD have to do with this reality?
What exactly are the ads suppose to be telling us?
Are all the people in this reality also trapped or is this kind of like a Truman Show kind of deal?
Your theory about Mojo is also interesting. Just another thing that can be theorised on.