I have really been enjoying Fraction & Leiber's Jimmy Olsen, but I am curious about the idea of Jimmy coming from wealth. During Morrison's run, he established that Jimmy was raised poor but learned he was the long-lost son of a wealthy celebrity mother who attempted to make up for her absence by giving him a life of luxury.
Now, Fraction has established that the Olsson family has been one of the founding families of Metropolis that has been rivals with the Alexander family (Lex's descendents) for presumably decades. Plus, there's the idea that Jimmy has an older brother.
Are all these new ideas? Or are Morrison and Fraction simply bringing back older concepts from the Silver Age?