User blog comment:The.Outsider/Tons of New AC3 Info & Gameplay!/@comment-3997738-20120928114447/@comment-3046679-20120928155757

Ok, we know things now.

Desmond will move exactly like Connor - see that he doesn't have the "modern" walking style he used to, he walks with his arms a bit stretched out to the sides and the same gait as Connor.

Presumably the same will be for his freerunning abilities, which is good. I hated that he learned Ezio's abilities, but had Al's casual climbing.