I'm not going to complain if there isn't one, because the game will have a ton of stuff, just pointing out that climbing isn't really a replacement for the kind of thing a hookshot type item gives to me. Think of it as the difference between being able to run up walls and a short blink forward in a different game. Nether really replaces the other, just empowers your character in a different way. And that is of course separate from how a hookshot/grappling hook item interacts with enemies in the game as well. The shield boarding is the thing that got me excited the most from all the stuff shown so far. Like I said, extra movement abilities are something I love in games.
Imagine if they implement the hookshot so that you can launch into the air and open the paraglider ala Just Cause and Arkham City.