You could bring in Tal-Rho from Superman and Lois. He could be their uncle who takes over raising them.Giving Lois and Clark more superkids is definitely the exact opposite direction I would have liked to have seen the line move towards. However, it's clear that they aren't writing these comic books for my niche and haven't been since the end of the New52.
I guess the hope might be that the more they keep doubling down on this without sales spikes to support it, the more likely the New52 Superman, or a Superman with an age, personality, costume, and status quo in the world similar to the New52 Superman, could make a comeback, if not as the main Superman, in a limited series, an alt-universe monthly, as part of a book about a super team (i.e. Justice League, Titans, some other thing or some new thing), or as a recurring character the way all sorts of people who generally don't have their own books show up here and there.
One thing worth noting on the new superkids is that we've seen adopted children of Lois and Clark be written out of the comics before. Granted, with comics books, even more than scifi, because superhero comics often encompass scifi and just flat out magic and a bunch of genres that cumulatively allow things to be changed in almost any way at any time, it would be easy in the sense of storytelling to write out or erase biological children in the same way (Which is something that happened to at least one iteration of The Flash), I feel like there would be more fan resistance to doing that to a biological son of Lois and Clark than wards that are basically taken in because they have no where else to go. Writing these kids off might not be much complicated than some refugee from Warworld with a biological connection turning up and them wanting to reconnect with their heritage, and feeling it was especially important as some of the last of their kind (Or something like that- I didn't read the Warworld Saga)- a sentiment their adoptive family might agree with, even though I'm sure it'd be bittersweet for them, and they'd miss the kids.