Coaching has been introduced worldwide and absorbed into corporate HR as one of employee development programs quite intensively and extensively in recent years rebranded as Corporate Coaching (CC), with early indicators showing that coaching positively impacted employee performance. Unfortunately, further research on its impact on long-term/sustainable employee performance has yet properly researched. Digital leadership (DL) on the other hand has becoming household jargon in the era of Industry 4.0 indicating the trend of leadership has shifted into the facilitation of a more data-driven, flexible time, people-oriented, collaborative, and technology-savvy working environment, with particular note that the research of DL still limited to short term performance. Work-life integration (WLI) construct as the mediating variable between DL and employee sustainable performance (E-SuPer) also has not been addressed sufficiently. The aim of this paper is to develop theoretical foundation for the nexus of CC, DL, E-SuPer, and WLI, thus providing a complete review of the literature on the interdependence association of the variables. This paper provides insights for researchers as well for managers on what variables need to be considered when it comes to similar interdependence.