No, Ryan Braun's suspension will not change the MLB, because suspensions are handed out all the time in baseball, but they rarely make a difference. Baseball players are going to continue to do what they do and simply hope that they do not get caught. This is true for the doping scandals, and this is true for Ryan Braun's suspension.
Ryan Braun's suspension represents a shocking development for major league baseball. However, former MVP and big name players have been caught using illicit, performance-enhancing drugs in the past. Yet players continue to find ways of evading detection systems in order to gain an advantage. The appeal of money and fame is too great an incentive to be affected by the Ryan Braun suspension.