About the side+b: I think that the name "Triple Trust" implies that he might shoot through the air three times in succession, with small pauses in between. I know that he had a move that resembled that in the Kirby games, but I don't recall precisely how it worked.
About the up+b: I disagree with the Kirby comparison, I think it resembles Marth's up+b a lot more than Kirby, except the sword seems to be tilted at a different angle. No way to really tell until we see how the move actually ends.
About the down+b: As I mentioned earlier, it almost definitely reflects projectiles (as seen in the trailer), and it being a cape makes it more like Mario's side+b, but probably with a different quirk than "turn the enemy around".
About the b: No idea what exactly is going on here other than he's creating a tornado. Could be unique.