In a medium bowl, combine the flour, brown sugar, and cinnamon together. Cut in the cubed butter with a pastry blender or two forks. Set aside in the fridge.
Lightly grease a 9x9-inch square baking dish or 2.5-quart casserole dish.
In a medium bowl, mix the softened cream cheese with 1 tablespoon of the maple syrup. Arrange half of the bread cubes in the bottom of the baking dish. Drop spoonfuls of the softened cream cheese over the bread and top with half of the berries.
In a large bowl or measuring cup, whisk together the eggs, milk, cinnamon, maple syrup (add brown sugar here if using) and vanilla.
Top evenly with remaining berries. Sprinkle the streusel topping over the berries. Cover pan with foil. Allow to chill in the refrigerator for an hour or overnight.