Nauvoo's demographic homogeneity is notable in comparison to many U.S. cities experiencing increasing diversity. The city's income growth aligns with broader national trends of economic recovery and growth following the 2008 recession, though the population decline since 2015 may indicate local economic or social factors affecting residency.

Based on observed trends, Nauvoo is likely to maintain its "Low Diversity" classification in the near future. The consistent high percentage of white residents over the past decade suggests a stable demographic composition. If the city follows broader national trends towards increased diversity, it might slowly transition towards a "Moderate Diversity" category over a longer period, particularly if economic opportunities continue to improve and attract a more diverse population.

The steady income growth, if sustained, could potentially attract new residents and businesses, which might gradually increase diversity. However, the recent population decline suggests potential challenges in retaining or attracting new residents, which could hinder significant demographic changes.

In conclusion, while Nauvoo has experienced economic growth, its racial composition has remained notably stable over the past decade. The community's future will likely depend on its ability to sustain economic growth while potentially becoming more attractive to a diverse range of residents, which could slowly shift its demographic profile over time.