The debate has already started- what next post Jayalalithaa's era. Everybody is conceding the fact that at present there is huge void in Tamil Nadu politics. With the demise of Jayalalithaa and considering Karunanidhi's old age (he's around 90 years old and hospitalised too) many are also of the opinion that this might be the beginning of end of the Dravidian politics.
During the 2016 Assembly election of West Bengal, the Narada sting expose came out, in which, many prominent TMC leaders were seen taking cash for favours. Then, there was a flyover collapse as well. Earlier, a few senior leaders of TMC were caught in connection with the Saradha scam. Thus, many thought that TMC would lose the election.