I do wonder if they are going to age up once again to get closer to the age range of the other Young Avengers.

I certainly think that both the children and Vision will be lost after the events of WandaVision. I could see a sort of happy ending later down the line that sees Wanda restore White Visions conciousness and picking the kids out of the Multiverse at the loss of her powers.

I think the twins may have developed souls even though they themselves aren't physically real and the only way for them to survive, as the Hex falls apart, is for 'Ralph' to finally take them. As they hug wanda one last time, they begin to phase and and get pulled beneath the surface. A bit dark...but Wanda has to be pushed even further into Madness.

He did say in a week...OR TWO. 10th episode here we come!

I've been debating what Marvel Studios is going to do with the kids since they've introduced them. What are they going to keep from the comics and what are they jettisoning. Billy & Tommy have a very convoluted origin story in the comics so what is Marvel going to do to streamline it? So here's my theory.

While Wanda can't use her magic to control Hex Vision's actions or her children, there is a difference between the two. Wanda Maximoff gave birth to her kids. She didn't create them out of nothingness like Vision. They are made of flesh & blood and are essentially a part of her. Despite it being accelerated, that was a real pregnancy. And Agatha Harkness gave a clue when she said Wanda, as the Scarlet Witch, is capable of spontaneous creation. She can create life. To me, that implies the kids are real.

I think Vision is real too but only in the Hex. Because Wanda used residual energy from the Mind Stone to recreate his body. It was shown Vision couldn't escape from the Hex so that's a pretty good sign his physical body can't exist outside in the real world. Also, the Mind Stone currently does not technically exist in the MCU since it was destroyed by Thanos. Perhaps that was why Marvel specifically revealed it was the yellow Mind Stone power that formed Vision's body. Wanda's Chaos Magic gave Vision life, just like the kids, but unlike the kids, his body was formed with a power that doesn't exist in the real world.