Traditional trauma-focused psychotherapies (TFPs) were developed based on an anxiety disorder model of posttraumatic stress disorder (PTSD). However, PTSD is a more complex disorder with heterogeneous onset, presentation, trajectory, and treatment responsivity. As half of treated patients do not respond to first-line treatments, innovative therapies are emerging to improve outcomes. This narrative review of therapist-delivered psychotherapies for PTSD focuses on interventions not yet endorsed by clinical guidelines. A systematic search of MEDLINE and American Psychological Association PsycINFO was conducted for English-language human clinical studies, guidelines, and reviews related to PTSD psychotherapy through June 29, 2024. Data were thematically analyzed, focusing on how emerging interventions modify or diverge from current guideline-recommended treatments. The review identified 4 key themes for improving trauma therapy: (1) optimizing existing TFPs, (2) adapting psychotherapies used for other conditions, (3) reimagining exposure therapies, and (4) new therapeutic modalities. New exposure treatments include those capitalizing on memory reconsolidation science, combination with pharmacotherapies, neuromodulation, or virtual reality technologies, and mind-body and somatic psychotherapies. Moral injury, identity, and spirituality-focused therapies aim to resolve intense internal conflicts, guilt and shame, and issues of meaning and purpose. Finally, multi-modal treatments like 3MDR and psychedelic-assisted psychotherapies have multiple synergistic mechanisms. Ongoing research will be crucial to validating emerging approaches and optimizing their combined potential. A PTSD staging model may provide a structured framework for rigorous empirical evaluation and clinical implementation. Future research should prioritize randomized controlled trials with diverse patient populations and long-term follow-up to ensure their safety, efficacy, and scalability.