In an era characterized by complex mobility patterns, health crises, shifting geopolitical landscapes and personal and family’s views toward international education, it is imperative to recognize the concurrent (im)mobility challenges at a global scale. Despite a growing body of literature on international students, little attention has been given to prospective international students who defer their overseas education and remain in their home countries for various reasons. This cohort—having initiated pre-departure educational mobility but not commenced their studies—has been largely overlooked in international education research. This study addresses this critical gap by examining the “in-between” state of prospective Chinese international students, who exist in a liminal space between domestic and international identities. The study foregrounds the centrality of Third Space and liminality as analytical lenses to understand how students and their families negotiate uncertainty, construct hybrid identities, and reimagine educational pathways within fractured global contexts. The ‘in-betweenness’ in the study expands mobility frameworks to encompass temporal discontinuities, fragmentations, and non-linear trajectories of educational mobility that stir up challenges in this cohort’s wellbeing and family and social relationships. By advocating for the ongoing, processual nature of international education experiences, we call for universities and policymakers in both home and host countries to develop supportive infrastructures for these ‘in-betweeners’, ensuring they are not marginalized within international education systems.