With a total of about 54.500.000 votes, Dilma will have about 2.2% less total votes than she had in 2010. Aecio, meanwhile, had just over 51 million votes, a 16.7% increase on total votes compared to Serra 2010. I think the trend we're observing is very positive for the PSDB, they pretty much won ALL the new vote. I'm optimistic about 2018.
2018 is FOUR YEARS away - who knows what the world let alone Brazil will look like by then. Also, Dilma as i understand it will not be allowed to run for a 3rd term - so who would be the likely PT candidate in 2018?