In this paper, I examine the changing currency of languages in the context of migration and mobility based on case studies of Filipino migrants in Australia. Drawing on two sociolinguistic studies conducted with and for Filipino migrants, I highlight how the "monolingual mindset" (Clyne, 2008) reinforced by the "White-English complex" (Piller, Torsh, & Smith-Khan, 2023) negatively impact on the value and currency of Philippine languages. As an alternative, I offer the concept "multilingual mindset" as an inclusive framework for valuing multilingual migrants in the diaspora. I first introduce the linguistic ecology and national language policies of both the Philippines and Australia to set the scene for my argument. I then map out the migration trends in both countries and the simultaneous socio-political events that have driven the growth of Filipino migration in Australia and introduce the two sociolinguistic studies with and for (Blackledge, 2006; Tetteh, 2015) Filipino migrants. This is followed by the presentation and critical discussion of three key conceptual arguments of this paper derived from these studies. Employing the "monolingual mindset" (Clyne, 2008) and "White-English complex" (Piller et al., 2023) as lenses, I then critically discuss how these concepts are detrimental to heritage language maintenance and "inclusive multilingualism" and argue that the maintenance of migrant languages in the diaspora would best be facilitated by an adoption of a "multilingual mindset." The paper concludes with a discussion on the significance of the "multilingual mindset" to sociolinguistic studies and migration linguistics (Borlongan, 2023), in general, and to language attitudes, language practices, and language policies across different sectors, in particular.