Seems like old times in the new trailer for Season 4 of “Girls.” Shoshanna has a new haircut and never really liked Marnie, Hannah and Adam are all kinds of confused, and Caroline calls Hannah “profoundly damaged.” Then there’s Jessa, who has taken to quoting Emily Dickinson Selena Gomez Woody Allen. “The heart wants what the heart wants,” she says to Hannah. Guess she needs the eggs.