Man-bear-pigs prediction:
He will break your legs and you with rue the day you were born. Your legs will take 6 months to heal, and you will become a full-time vgchartz user. By September 2012 you will have 240,000 posts.
My prediction threads:
Wii U will sell under 40m units (made on 14th September 2012)
PS Vita will sell under 20m units (made on 30th September 2012)
Wii U will sell under 7m in 2013 - I was right