All we know is squat to be fair. We know one guy saw footage of a generic suit for his Thor cameo, and another saw concept art for his larger role in Avengers.
What we also saw recently was an official pic of the new Wonderwoman, followed a week later by on set pics of her wearing red boots not blue like the official pic, and less shiny trousers than the official pic. So what some guys think they saw in a night time scene cameo of a character who will be a larger part of a later film really doesn't tell us jack.
We don't know if he only uses a bow, or if he has an issue with killing so uses a bow to avoid that, or if he'll kill anyone provided he's given orders, or if he uses night vision targeting specs like Smallville's GA.
We don't know if he's also acrobatic, or is ex-military, recruited by SHIELD straight from the carnival like a CIA candidate out of college.
We don't know if he'll use a crossbow too, or if his SHIELD uniform has additions specific to his speciality (arm brace, taser arrows, the classic Clint loin cloth)
