Telerehabilitation in older adults is most needed in the patient environments, rather than in formal ambulatories or hospitals. Sup-porting such practices brings significant advantages to patients, their family, formal and informal caregivers, clinicians, and researchers. Sev-eral techniques and technologies have been developed aiming at facilitat-ing and enhancing the effectiveness of telerehabilitation. This paper gives a quick overview of the state of the art, investigating video-based, wear-able, robotic, distributed, and gamified telerehabilitation solutions. In particular, agent-based solutions are analyzed and discussed addressing strength, limitations, and future challenges. Elaborating on functional requirements expressed by professional physiotherapists and researchers, the need for extending multi-agent systems (MAS) peculiarities at the sensing level in wearable solutions establishes new research challenges. Employed in cyber-physical scenarios with users-sensors and sensors-sensors interactions, MAS are requested to handle timing constraints, scarcity of resources and new communication means, which are crucial for providing real-time feedback and coaching.