I think the spanish-subbed one said it better. "Trailer with gameplay".
Overall, looks interesting. Arkham City added neat-o aerial traversal, and Knight has ground and aerial. Batboat and batplane in Arkham Apocalypse, then?
Hopefully Batsy means more than just Bat-my-ride by "evening the odds". Full Batfamily line-up of Nightwing, Red Robin, Robin, Batgirl, Blackbat and Ace the Batdog pls. Incorporate a Batfamily vs. Rogues multiplayer with Oracle Babs as Batcommand, organizing Bat-traps and Bat-supply drops.