Well as it has now been exposed that Nick Fury, or one of his LMD's on his order, has not only been a spy and an assassin on Earth for sometime, but has also been a galactic assassin in the Marvel Universe, blasting away perceived "bad aliens" before they became a problem for Earth. Well it looks like that will be the basis for Bucky's new title. As he will take Fury's place at the end of Original Sin. I think this was on BC, but can't remember.
Not sure if I like Bucky doing this, as it is too close to what he was doing for the Russians as THE Winter Soldier, so I think he would have a hard time going back to that "job" as he struggled so much with his actions when he was finally broken. Other than that, I am kinda intrigued for seeing the possibility of a space spy title. Really torn here.