Do 21st century circumstances, current complexity, and multilingual reality really constitute a reconceptualization of language? See Defining Language, Multilingualism, 21st Century.
Are the practices shifting with the understandings? Have the understandings of the world and language, and the migrations and problems really changed that much? Even if the situation is complex and this affects languages, social justice and language rights cannot be. Advocates of multilingual schooling struggle for linguistic rights through education, maintaining the roots of one’s identity and culture in language. The advocates for Linguistic Human Rights and multilingual education with mother tongue instruction do not negate that languages evolve and change. Others argue that language is only social practice and does not need to be protected for social justice.
The reconceptualization of language by some sociolinguists and others is based on a charge that linguists previously ignored speaking practices, but the discoverers of this “new” knowledge are the same group- academics and outside observers (or at times insiders trained in academic methods) that mistakenly romanticized and reified languages. Yet, the polyglossic societies have been forced to change due to colonization, formal and increasingly standardized education, and linguistic imperialism. See Linguistic Imperialism, Education vs. Institutionalized Schooling.
Language complexity or dynamism should not be used as a reason to explain away the losses of entire languages, structural features, and cultural rights. Furthermore, a binary between essentialization and contextualization is an unwarranted charge. Perhaps one seems to essentialize rights through multilingual education, but this includes a broader scope for education itself. The other choice only calls for ethnographies of infinite and rootless spaces. See Multilingual Education, Deep Education.
Flexible Language in Education Policies, flexible assessments, and teaching practices that respect and value the whole linguistic repertoire of a student are potential solutions to these social questions related to language.