I think you missed a bit on page 1
DICE (Digital Illusions CE) is said to be working on the Frostbite 2 engine at the moment. This upcoming engine will carry native support for DirectX 10.1 and DirectX 11, as well as parallelized processing supporting 2-8 parallel threads, allowing it to use the full capacity of a Core i7 processor, for example. The Frostbite 1.5 engine used on Battlefield: Bad Company 2, on the other hand, is mostly DirectX 10 based with a few additions catered to DX11 users, namely softened dynamic shadows and presumed performance improvements. A cut-down rendering version that only uses DX9 is also included, so Windows XP users can still enjoy the game.