The relationship between the siblings got some development, hints at deeper feelings between Mia and Connor were dropped, and more of the world and time was built.
Dinah, Roy, and Wild Dog were all but secondary to the plot, with Felicity as the main character from the present with the biggest role.
Yes, “Star City 2040” did feature major characters from the present timeline and finally introduced future Felicity, but the focus was on the three super-kids: William, Mia, and Connor Hawke.