Link to promo here good until Janurary 15.
As the title says the base Destiny game or guardian edition as well as the season 1 pass all get a free upgrade to next gen if redeemed before Janurary 15. A great deal for those that want Destiny but are still on the fence about PS4/X1 purchases
edit:All your stats/gear follows you from last gen to current.
Getting an XBOX One for me is like being in a bad relationship but staying together because we have kids. XBone we have 20000+ achievement points, 2+ years of XBL Gold and 20000+ MS points. I think its best we stay together if only for the MS points.
Nintendo Treehouse is what happens when a publisher is confident and proud of its games and doesn't need to show CGI lies for five minutes.
-Jim Sterling