I was thinking thanking about the couple and if they will be introduced in the new DC universe. Does anyone really want to see them with other people or starting out as a couple/not married? That's the main reason most famous couples aren't currently together, right? To create drama, to kept people guessing who's going to date who (some of it doesn't even make sense) and be different than the old world. Here's the thing...I don't think many people are interested in seeing Ralph solo. The only time I saw interest was in 52 but even then there were people losing it over the hint that he'd "hook up" with someone else.
I believe it was Morrison that pointed out that Sue and Ralph are a superhero version of Nick and Nora Charles. They play off each other, she encourages him in his pursuits and their the perfect couple. Worried it "ages" them? Have them marry younger when he was starting out as a detective. Have the superhero bit come later and be something they both have to get used to.