TPU uploaded some pictures of the Corsair Obsidian Air 540D, a cube-like case with a unique design that partitions the motherboard tray in the middle of the case. Behind the motherboard is a large compartment that holds the PSU and the storage disks. This partitioning makes sure power cables don't clutter the motherboard tray area, and should improve airflow in critical areas.
The 540D should ship in July, pricing is still unknown.
The case can hold ATX and EATX motherboards, with eight expansion slot bays. The space below the motherboard tray and the bottom of the case, can either be used to expand storage with two 3.5/2.5-inch trays, or a second 240x120 radiator. All cables from the motherboard compartment can be routed through the valved holes to the other part of the case, which holds a long PSU bay, two 5.25-inch drive bays, and a couple of detachable drive cages holding multiple 3.5/2.5-inch bays. Corsair plans to launch the case some time in July.