1. Toward the end of the episode, there was a scene with Edgar and Alistair, Edgar mentions it in passing about Vought being Alistair's grandfather. Not sure if they're just familiar business rivals like Steve Jobs and Bill Gates, or if they're just different arms of the same entity that's trying to take over the country.
2. Regarding who is and isn't in The Seven at the moment. Translucent was confirmed dead at the beginning of the season; Starlight sang at his funeral, where they had a clear plexiglass coffin with nothing in it. Stormfront was technically Translucent's replacement. As for the Deep, he was assigned to Sandusky, but I don't recall if he was officially out once his encounter with Starlight was made public. Plus, everything about Deep's arc this season is about him trying to get back 'in' to The Seven, and when Edgar and Alistair were negotiating his return and then switched it to getting A-Train back in instead, we're led to believe that Deep isn't in, so it's very confusing around his status.
3.
@Agent 47 made the observation about Starlight v Stormfront, and I agree/agreed and was fully expecting Starlight to blast Stormfront without mercy. As for Homelander Jr, I thought it was a little rushed giving him his powers, but if you kept up with the episode notes that show up on the side during each episode, they explained that in the comics, Becca dies in that scene but not by Ryan's hand, so I guess they wanted to square up a little with the source material and this was a good opportunity. I agree with your comments about Homelander adjusting to being a father, though now that he's not raising Ryan himself, I think he's going to take on more 'deadbeat dad' qualities, as somewhat exhibited by his behavior at the very end.
4. I missed the part about Vought having Stormfront at the end, but it makes sense. Still, I can't see any way for her to come back. And regarding her lineage, I'd have to go back to the episode when she revealed her history to Homelander, but if she was Jewish at any point, she put that waaaaay behind her. It also makes it tough because the actress that plays Stormfront is Jewish, and I sort of get that ethnic vibe from her looks, and I don't think that was an accident, so it makes the character that much more confusing.
5. As for Homelander buying into some of what she was saying, I would guess that for him, the line is drawn between top-shelf supes like him and those worthy enough to be part of The Seven regardless of race, gender, etc., so he definitely wasn't on board with her 'white extermination' narrative.
6. Teasing that shot since season 1 created so much anticipation that a mud person like me built it up in my mind to the point where I expected it to be a defining moment in the entire story, and while it was and just not in the way I thought it would, Antony Starr really knocked it out of the park without doing anything other than maintaining that look and staying as still as a man alighting on earth could stay. I feel cheated yet satisfied at the same time, because they subverted my subverted expectation of what they were going to do, and they did a brilliant job.
This show is diabolical indeed.