Thinking on it some more, I'm kind of wondering if they're not angling for a "Dark Phoenix" type of thing with Wanda. The way the presented her getting her powers and how Agatha treated her had a really strong Phoenix Force vibe to it. >_>
Also, I feel like I'm usually pretty on top of comic stuff in general, but how did I not know that her kids were actually eventually revived in the comics? I've legit read comics with them in it and had no idea that's who the characters were supposed to be. O_O
It's something I found out after the "Halloween" episode (due to Billy's costume looking familiar) and kept forgetting to post about it because I was distracted by other things going on.
For anyone who is apparently as dense as I am:
They brought them back nearly 20 years later in Young Avengers and are Speed and Wiccan. They were presented with different last names but went through a storyline discovering they were brothers and who their parents are. I apparently completely missed that but have read stuff with them after that point and never realized.