Migration from south to north nowadays is becoming unprecedented and alarming. Earlier scholars classified drivers of migration into push and pull factors. Modern trends of migration cannot be limited to push and pull factors. Regards, the Foresight conceptual framework on migration is adopted to explain determinants of modern migration. The study aims to identify trends and patterns of earlier and modern drivers of migration and to reveal contributions of migrants to origin countries. The paper adopts sampling methods of desktop research, relevant journals and magazines on migration gathered for the write-up. Findings revealed that in the olden days, migrations were mainly driven by push and pull factors; however, modern days drivers comprise macro (push and push) factors such as; unemployment, non-economic, and environment. Meso drivers are distances, social networks, technologies and Diasporas links. Micro reasons are age, sex, attitude, education and marital status. These factors are considered before whether to migrate or not. The paper argues that migration can result in brain drain, and can also lead to brain gain. The skilled workers lost from developing to developed countries return home, establish businesses, and train non-migrants. Remittances flow to origin countries are used for development. However, some scholars view remittances as causes of inflation, termed it ‘Dutch disease’. The paper concludes that in earlier days, when meso and micro factors were not there as drivers of migration, they now play significant roles in migration. Therefore, it is recommended that good governance and democratic principles be revamped and rejuvenated in the global south to ensure economic growth and development which will ameliorate migration to the Western world for seeking greener pastures.