By early 2014, if PS3 gains another million on Xbox in 2013 like it did this year. But I expect Current gen consoles to still be supported till 2016 at least, 2 to 3 years after the next gen consoles came out (the same for the Wii as well)
Xbox One, PS4 and Switch (+ Many Retro Consoles)
'When the people are being beaten with a stick, they are not much happier if it is called the people's stick'- Mikhail Bakunin
Prediction: Switch will sell better than Wii U Lifetime Sales by Jan 1st 2018