Grease a 9x13 pan and set aside.
Place half of the bread cubes on the bottom of the pan.
Mix softened cream cheese and 2 tablespoons of maple syrup in a small bowl until smooth. Drop spoonfuls of the cream cheese over the bread cubes. Arrange half of the blueberries over bread cubes as well. Layer with remaining bread cubes.
In a large bowl, whisk together the eggs, milk, cinnamon, ⅓ cup maple syrup, brown sugar, and vanilla. Pour evenly over bread cubes. Press the bread down to absorb the milk and egg mixture. Top evenly with the remaining blueberries.
Cover pan with foil and allow to chill at least one hour, or overnight.
Preheat oven to 350°F. Bake covered with foil for 30 minutes. Remove foil and bake for an additional 23 minutes. Remove from oven and allow to cool slightly. Serve with maple syrup.