FF Versus XIII Trailer Translated/Decoded?

[forevercloud3000]

From what I am getting from it so far.....
Stella and Noctis both have the same gift
Whatever gift they have, is slowly killing them.
There is someway to increase their power or ability(maybe to keep them alive) but they have to sacrifice someone close to them in order to do it.
The Shinmagami can seemingly speak to Noctis(and Stella?) in their heads.
There may be more then one shinmegami. Stella says it told her something.....We actually hear Noctis's say "Who....are you?"