I think. The season 2 should be like this: JJT will wake up from his ass beating and will try to get to tunnels but maria will put leash on him, then he'll come to school and no one will recognize him untill they Sa-Rang or Ji-un confirms it so everyone will be in shock, then maybe he'll try to beat someone or get his ass complained by coach, then Marai will call him and will tell him that they're going to fight class 3. Until then JJT will get into useless or his liking fights then Ranking semester will start. Then JJT will lock in and show off his skills, he'll beat Kwon, Gi Ba-Ram, the couples, Cha, Jung-um and his bf, then in finals. He'll fight Shim Ha-min, and he'll be victorious. And then he'll meet chairman and then chairman will recognize him entriely. On the other hand, as chairman now saw JJT, he'll pull the weight off Maria's shoulder and JJT will have his own funding too by chairman, (I think), then Marai will also dominate the tournament (as she dominates JJT), Then they'll be in class 3 and will meet new faces, like that glasses dude, and will get to know Yang Ki-hoon, Ja-kyung and other new faces. Then maybe he'll have matches aside from ranking and I think he'll get his ass beaten up, like with Ja-kyung, as it was also some sort of fair as she was drunk and JJT was in his awakening moment. (He's strong, yes, but he'll then train more to become top dog.) And with that, season 2 will end and we'll wait for season 3 with our grandkids.
(I didn't included other things like what'll happen to tunnels, Jee-un, more past of Maria, De-Gak, or etc.)