But will that freedom be short lived? In her birthday post, Witherspoon used the past tense — "It was such a dream to get to work with you" — to describe her experience on set with Streep. Could she have unintentionally revealed that Streep won't be returning for a third season and, if so, what does that mean for Big Little Lies? Is it possible that she uncovered the cause of Perry's untimely death and turned in her daughter-in-law, effectively ending the series? Or, did she pack up her bags and head out after an unsuccessful dig into Celeste's past?