I don't know if there has been any comfermation on this but If it has not been set in stone I'd like some discussion about it.

Left trigger: weapon/ spell
Right trigger: weapon/spell
Left bumper: pick up object
Right bumper: sprint

A: action
B: open journal/ map/ stats/ inventory
X: ??? I forgot what x did in oblivion
Y: jump

Dpad: hotkeys
Joysticks: movement

Really what interests me is what they will do with the bumpers since magic won't be used on a Humber and also x because I don't remember using x in oblivion.

x was sheath wepon but unless they put an auto sheath if certain time has passed or make it a combo button action it will stay

My guess is that the shoulder buttons will be used to block. I know that you can bash with the shield, so the actual block may be mapped to the shoulder button while the attack takes the trigger. Same would go for weapon blocking, but this may only be the case when the weapon is readied.

Its a good topic for discussion. It'll be interesting to see how the dual-wielding works on a console controller

Left Trig: Shield/Weapon

Right Trig: Shield/Weapon

Left Bump: Pick Up Object

Right Bump: Map

Left Stick: Sprint

Right Stick: Crouch

A: Action

X: Sheath

Y: Jump

B: Third/First Camera View

That's what I will make my layout, have been since Morrowind, excluding the sprint feature obviously.

L1: Shield/Weapon

R1: Shield/Weapon

L2: Pick Up Object

R2: Map

Left Stick: Sprint

Right Stick: Crouch

X: Action

Square: Sheath

Triangle: Jump

O: Third/First Camera View

L1: Alt wep,magic,magic
R1: Main wep,
L2: Pick Up Object
R2: Sprint
Left stick:crouch
right stick: 1st/3rd person
X:action
square: sheathe
triangle: jump

O: menu/map