Maybe they are just creating the DX11 "patch" in advance so PC gamers have it on release day. I'm thinking like Crysis 2 but they decided to release that patch later.
Of course it's conceivable that BF3 is designed as DX11 64-bit and will be "patched" to run on consoles.
Hoping for the latter of course but who knows.
So far from the alpha screenies im seeing it looks like BC2 1.5......... seriously im worried. Same GUI, 4 men squads, 4 kits.....
Ever since I heard no commanders or squad leaders I knew this game would not be able to top BF2.