It probably will!
Nintendos goal is to make 10m by march 2018.
They might do abit more, if they can get production up..... so lets say they do 12-14m by then.
Sony is on track to do like 19-20m by end of this year, and by march will probably have done another few million units too.
So no, Switch isnt going to sell more than PS4 this year.
Not world wide, total sales.
Necro-bump this 2020: http://gamrconnect.vgchartz.com/thread.php?id=229249
Bumb in 2021: http://gamrconnect.vgchartz.com/post.php?id=9047071