as per the article of telly buzz we have seen that karan would make an entry in ridz sid wedding and would be in a typical devdas look. so if we omit wat Pranshu Ghosh has said of armaan not coming back and if we just give a glance that KSG is coming back, so there can be a possiblity of KSG being a devdas. entering after the marriage of Sidhima , seeing his love betraying him, armaan would be disheartened and would transform himself completely into a devdas and like Devdas, DMG can go into that similar track.
Its just what i thought after watching Devdas.acha nahn hoga k riddhima ki shadi hojaye cux then our armaan wud be free from such a girl who never cared about him and asked for his sacrifices.
This is only a intution which shud not be believed upon.
bashers please stay away.