hrm, doesn't reveal anything new story wise I can think of. It gives us visuals we haven't seen about the backstory, but nothing new story wise.
The fighter sequence is more elaborated on now and lays a bit more out in terms of 'why'. I think this trailer will be much more 'accessible' to the non-TRON crowd. It lays out the premise much more concisely and gives it an action feel. Good trailer.
Thanks for sharing