You get to remake the universe and introduce and incorporate Supergirl and Kandor. Part of the planet or moon colonies or whatnot. I like planet-side with no space travel for Kryptonians, myself, as I think it fits better for Superman's origin story.
Kandor is a bottle city, so I'm interested in what people would do with it. Do they have farmland? Vertical farming? Food machines? What's their energy source? How big is the city? Did any die when Brainiac took it? What was the culture like before and after the event? How long ago did it happen - months before Krypton's destruction? Years? Decades? Centuries? Is the stolen generation still living (stasis possibly used)? What percent was born after? If many of the born-on-Krypton generation is still alive, when do they learn of Krypton's destruction and how do they feel about it? Would they rather be enlarged again under a red or yellow sun?
For Argo, it's more about infrastructure and how long the city could last and how people react to Krypton's destruction and being sole survivors. And that's only applicable if Argo does actually survive Krypton's destruction. If it's just the city Kara lived in before launched into space in stasis, then it's just part of Krypton and can be treated only as part of the whole instead.