Article révisé par les pairs
Résumé : The concept of basin scale ocean acoustic tomography, born thirty years ago, generated a strong enthusiasm in late twentieth century. This enthusiasm fall as the concept did not led to operational applications. Since a decade the interest for coastal areas, either for civilian or military applications rose again with the new concepts of rapid environmental assessment and coastal tomography, active and discrete. What are the expected evolutions in the short and medium terms of these concepts? This paper explores some future developments for concept and systems of maritime tomography.