It has been charged that transformative learning theory is stagnating; however, theoretical insights from relational ontologies offer significant possibilities for revitalizing the field. Quantum physics has led to a deep revision in our understanding of the universe moving away from the materialism and mechanism of classical physics. Some scientists observe that this shifting view of reality is catalyzing a profound cultural transformation. They have also noted significant intersections between the New Science and North American Indigenous philosophies as well as Eastern mysticism, all relational ontologies. These intersections as well as the theory of agential realism of Karen Barad, feminist physicist, are used to propose a next generation of transformative learning theory, one that is embedded in ontologies of relationality. The author came to relational ontology through environmental and sustainability education. This fruitful cross-fertilization helps illuminate a transformative approach to sustainability education or transformative sustainability education--which has not yet been explicitly theorized. Relationality demands an ethical, ontological, and epistemological transformation. The six criteria that emerge in the overlap between quantum physics, living systems theory from ecology, and Indigenous philosophies can reframe our understandings of transformative education, particularly toward socially just and regenerative cultures, completing the work of unfinished justice and climate movements. Pertinent to adult educators, Naomi Klein (2014) asks, "History knocked on your door, did you answer?" (p. 466).