I'm not sure exactly what will happen in the upcoming story. But usually, it might involve more relationship drama among the characters, new twists in the love stories, and perhaps some family issues to be resolved.
Well, considering the past trends of Saathiya on Star Plus, the upcoming story could bring in some new characters. These new characters might create misunderstandings between the main couples. There could also be some career - related challenges for the characters which will test their relationships. For example, if one of the main characters gets a job opportunity in a far - off place, it will lead to a dilemma about whether to go for the career growth or stay with their loved ones.