A direct hint at... playable Horseborn units?!? Can it be? Power
Horse Animation!
EDIT -- This Horseborn hint, reminded me of all that "2x1 sized unit" discussions, and how tricky that would be for moving around... Did you guys finally get anywhere? I am so tempted to propose
"anisotropic" mechanics (e.g. a unit needs to spend separate points for moving and for changing orientation; a unit has different STR/ARM/AB stats when "viewed/attacked/attacking" from a different direction: face, sides, back)