Anything is possible with the writers but I don't think it's Aditya coming to the thoshniwal house. Because how could massi sa call him and invite him. Apparently Aditya's whereabouts are unknown at this point. Unless Gagan Malik is aditya, meant to come later and someone else is playing the guru. Plus I would imagine uma Shankars guru would be older not the same age as uma.
Oh but I would love a jealousy track for sure. Maybe that would expedite the falling in love process between Kanum.