I actually dont remember much of LOK at all but im in the middle of a ATLA rewatch and reminiscing how like three years ago (and a again a few years before that) i was desperately looking for a krew goes back in time and stumbles into the gaang fic (which i could not find in the 100s of xover fics btw) and now im all caught up on Toph having airbending grandkids
Like realistically in LOK time Toph is probably actually really happy. The gaang's friendship meant a lot to her and its another way to connect to Aang whos been dead for a while at that point. But like the reactions in ATLA time...
The first conclusion is probably Aang And Toph Get Married, which makes sense logically because they are the only two in the gaang the same age, but would definitely throw Aang for a loop since hes so into Katara and i dont know what Toph's reaction would be but itd be loud. And like Lin and Tenzin did date so coming to the conclusion Aang's kids and Toph's kids get married would also be a logical decision but not the most obvious one. I can also see someone stupidly commenting how they cant see Toph becoming a mom (i'll be honest i was surprised at first myself) and her getting genuinely upset over that (like in the rewatch ive noticed shes actually a nice and very caring person which i had forgotten. Also hard to guess a person's future when they're twelve)
So yeah. How do you think the Summer of Sozin's Comet era gaang would react to Opal's existence?