I think they will develop it as it has lot of potential and honestly it will be easier to develop it as Aryan is always with Ranbir while Sahana with Prachi.
Yeah good point. It could just be small moments too that would simply be needed to develop them as like you said that it's possible given aryan is always with ranbir and shahana with prachi, so when ranbir is majnu over prachi, there aryan could be over shahana.