This twin-volume collection showcases unique explorations into the future development potential of English Language Teaching (ELT) research, encompassing traditional boundaries of the field and pushing beyond them. This second volume offers a thorough examination of current issues and future prospects from diverse perspectives extending beyond ELT. Authors discuss the applicability of research outcomes to ELT, drawing insights from linguistics (including phonetics/phonology, cognitive linguistics, generative linguistics, and historical linguistics), English literature, drama studies, the sociology of language, sociocultural studies, and generative artificial intelligence. This discussion is informed by the latest research trends in these interdisciplinary fields. While ELT historically has been developed as a primary branch of applied linguistics, it is increasingly recognized as a field with potential for interdisciplinary collaboration. ELT transcends linguistics alone and stands as a fertile ground for interdisciplinary studies. Rather than ?imposing? recommendations from one field onto ELT, this volume advocates for collaborative partnerships that are mutually beneficial in today?s complex educational environments. Such collaborations not only enrich ELT research but also foster mutual development across disciplinary boundaries. This book is recommended for anyone involved in ELT and related disciplines, including researchers, teachers, teacher trainers, and learners alike.