The most important economic asset of a population is its human capital: the skills, educational level, and wellbeing of citizens. In ageing populations, attracting skilled migrants is key for increasing productivity. However, integration that promotes social cohesion involves new demands to the educational system, social services, and society at large. These challenges are shared by all high-income countries, but they are especially astute in Finland. MigScene answers to these challenges and opportunities by exploring how human capital and productivity may evolve in Finland under various educational, migration, and integration scenarios. Using Finnish and international microsimulation tools, survey and register data, and machine learning techniques we present a set of multidimensional population projections for Finland between 2025 and 2070, study integration processes, employ methodological innovations, and enhance capacity to use projection tools.