I hope they take a real long while b4 they get to the Mahabharat stretch, b'cos there are a lot of other big things that happened in b/w - the Swayantaka gem and the marriages of Jambavati & Satyabhama, Krishna's other marriages (introduce Arjun during this period, when he befriends Krishna and helps him win Mitravindya), Sudhama's visit, Krishna's campaign against Narakasura and his marriage to the 16,100 concubines... Following this, have the birth of Pradhyumna and his abduction by the demon Shambara, and how he ultimately returns to Krishna & Rukmini, and also have the birth of Krishna's other sons.
After this, have some incidents where Arjun has that challenge w/ Hanuman, then have the building of Indraprastha and Balaram training Bhima & Duryodhan, then have Subhadra's marriage, then Yudhisthir's Rajasuya yagna & killing of Sishupala, his war w/ Shalva and Draupadi's vastra-haran, his visit to the Pandavas and assured support to them, followed by wars against Dantavatra, Purandara and other enemies. Show Abhimanyu growing up, and being raised by Krishna's family. Show how Samba abducts Lakshmanaa, Duryodhan's daughter, since this is one of Balaram's successes. Show the incident w/ Draupadi & Durvasha, and Satyabhama's meeting w/ Draupadi, then after the exile, show his missions to the Kauravas, his meeting w/ Karna, the Gita (finish it within a week), the war and its aftermath. Parikshit's resurrection is important as it was possibly Krishna's greatest ever achievement, so show that. Following that, show his role in the Ashwamedha yagna, then follow it w/ his war against Banasura and his grandson Anirudha's marriage to Usha, and then wind it up w/ the Mausala parva events of the Yadava fracticide.
Hope they cover all of this. If they do it right, they should get great TRPs. Don't rush the Pandava introduction - show things in the order they likely happened.