It would be awesome if NBA 2K13 implemented the upcoming 2012 Summer Olympics for basketball in the game as it's own mode.
For example, you get to choose a team (whether it be team U.S.A., Spain, etc.) and you play a in a bracketed playoffs system similar to the one they actually use in the olympics. The teams that make the top three get gold, silver, and bronze (obviously) and there should be like a ceremony animation if you win.
And for My Player, once you get your player's overall up there and he becomes a star, you can be invited to the Olympics to compete in the system just explained above.
I believe NBA Live 09 had the FIBA teams that you could play with which I thought was pretty cool. Those teams were based off of the 2008 Beijing Olympics. I'm not sure if there would be any problems with 2K Sports having the rights to put these foreign players in the game (e.g. we couldn't play rookies during the lockout) but if NBA Live could do it, then 2K Sports probably can too.
Adding a game mode like this in 2K13 would be HUGE, and probably make 2K13 not only the best basketball game of all time, but the best sports game of all time - especially in terms of realism. I know there are still a lot of problems in 2K12 that need to be addressed in 2K13, but since the 2K team has their new coding they should have a lot of time to add a mode such as this as well as fixing all the problems from 2K12.
HELP MAKE THIS HAPPEN GUYS, LET THE 2K TEAM KNOW! 