With ps5 rigth at the corner, probably never.
PS5 wont be out before 2020, imo.
I don't think it will outsell the Wii at all.
It ll be over 78m units shipped by march 2018.... and that year it ll be probably do like 16m. Its bound to reach like 100m by 2019.
What grass are you guys all smokeing?
Necro-bump this 2020: http://gamrconnect.vgchartz.com/thread.php?id=229249
Bumb in 2021: http://gamrconnect.vgchartz.com/post.php?id=9047071