So I looked at the GI update today and saw this...
"Stealth basically works the same as it did in Oblivion, but Bethesda has slightly altered what happens once enemies detect your presence. Now when NPCs think they see or heard something, they go into an alert state. Characters with a higher sneak skill will have more time to duck back around the corner or find sanctuary in the shadows. This new system eliminates the sudden attacks that sometimes caught players off guard in Oblivion."
Do any of you speculators think that this means shadows and lighting will have an effect on us padfoots creeping across the floor to end a shopkeepers life?