• Policy-driven maintenance and resource allocation hinge on national/regional language policies and perceived extinction risk, shaping revitalization agendas across diverse contexts [2], [11], [7], [10].

• Community-centered revitalization links language documentation to practical resources, emphasizing dictionaries, teaching materials, and fieldwork-driven approaches [4], [16], [5], [12], [15].

• Ecologies of language show how contact, multilingualism, and socio-political landscapes reshape endangerment, with regional diversity and cross-border dynamics influencing outcomes [3], [8], [17], [18], [6].

• Data-driven analyses of language sizes, distributions, and dispersal histories illuminate patterns of growth, decline, and extinction risk, guiding theory and applied work [1], [14], [6], [9].

• Extinction crisis narratives and media representations frame urgency and ethics of language preservation, shaping scholarly and community responses [19], [20], [2], [10].