You know in regards to Wonder Woman's reaction over the use of Nuclear weapons there's actually some established ground for how they may write it.
During the period in the seventies when they were publishing retroactive tales with Earth 2 Diana during WWII, they published this story.
Taking place in 1942, Diana discovers the existence of the Manhattan project, and horrified at the kind of weapon being developed makes the choice to stop it which brings her into conflict with Superman who's defends it. The story is resolved with Diana and Superman extracting a promise from Roosevelt that nuclear weapons developed would never be used for offensive purposes.
Obviously, in universe Truman ended up going back on Roosevelt's promise and used them to end the war anyway. Meaning effectively Diana's (and Superman's ) trust was betrayed.
Roy Thomas said he was planning to do a sequel to this story in All-Star Squadron, but because of Crisis, he lost use of Wonder Woman and Superman and had to scrap. It would have been interesting to see how he would have dealt with it.
If they keep some version of this in continuity, perhaps with Starman instead of Superman, since Ted Knight was retconned into being a Manhattan project scientist, this could be real interesting.