What do you mean? In Mexico for example nothing has really exchanged except balance of power, meanwhile some cartels/criminal organizations have gotten weaker, other cartels (Sinaloa Cartel and Los Zetas) have gotten a lot stronger because of that. The Colombian cartels still exist but are more numerous or easier to handle plus the Mexican cartels kinda replaced the Colombian cartels. I'm not sure what it's going to happen in Mexico because Mexico is next to the U.S and Mexicans have the geography, source of drugs and connections (other Hispanics/Colombians/Bolivians etc.) to be an important player in international drug trafficking.

Also, Mexico' Gulf Cartel has been going on since the 1920s, not that really matters but just throwing it out there.