heres a cut from the article
The demonstration closed out with a look at the All-Star Weekend festivities—the preorder incentive that gives you a branded dunk contest, three-point shootout and future stars game, as well as the upcoming All-Star venue and uniforms. This will not take the place of the Blacktop dunk contest and three-point games that have been included on the disc for several years and will come in NBA 2K13 regardless. And if you don't preorder the game, your play-now and career modes will still have an All-Star game, it'll just use the previous year's venue and uniforms (in this case, Orlando's) until the All-Star game is actually played and 2K gets permission to patch in the new skins. The preorder bonus is also for all preorders; it's not tied to a specific retailer.
my question if you don't preorder you can still the allstar an the dunk contest an the 3 point contest for quick an myplayer but if you preorder you just only getting the updated skins early until the allstar game is played which on pc we probably can find it hidden like the jerseys