Slice leeks in half lengthwise, and cut into 1/2-inch dice.
In a stockpot, heat oil over medium heat. Add leeks and garlic; saute, stirring, until translucent, about 7 minutes. Add jalapeno, carrots, spices, and salt; lower heat to medium low, and cook until carrots are almost tender, 4 to 5 minutes. Add tomatoes, wine, and 1 cup water. Bring to a boil, and lower heat to medium; cook 5 minutes.
Stir in shrimp and scallops; cook until just opaque, 4 to 6 minutes. Remove from heat, add cilantro, and serve over Israeli couscous pilaf.