“Which would be no different than what we’re getting with Supergirl.”
I see it more in the context of the Arrowverse. Their interpretation of events that transpired before Supergirl put on her cape. For instance, they could adapt the graphic novel “Birthright”. There is enough content that can be explored that the tv show Smallville did not.
“They have to raise their child on Argo, not Earth, so there’s no real story there.”
They didn’t say raise their child on Argo. They said to have Lois have her pregnancy and birth on Argo. At least that’s how I understood it when they explained it to Kara.
“I really like the Arrowverse’s Clark, Lois, and Jimmy/James, but there just isn’t any story for them independent of Supergirl that wouldn’t be treading old ground.”
I guess it depends on the content they could choose depending on their budget. I think that’s a hard part in a tv show series. There is only so much they could do with a budget. To keep the Arrowverse’s Supergirl and Superman separate in the same timeline, then I would make Superman more intergalactic. However, you know there is no way CW can have that type of budget. Which is probably why they are trying “Batwoman” since it is cheaper.
Booster Gold would be an awesome addition to the Legends of Tomorrow! One of my favorite characters. I’m curious if they will use him someday. I’m beginning to think, the future timeline in the Arrowverse is limiting who or how to use the future characters we see in the comics. We have the grim future being shown on the flashforwards on Arrow. We saw what Zari went through on the Legends of Tomorrow, and what became of Star City. To top that off we have Nora West-Allen, who let things slip on what the future is like for her. There is a reason why Iris put a chip in Nora to hinder her speed. The future looks pretty bleak on Earth-1.