That's not riverdance, more of a cross between ballet, belly dancing and arabian dancing

That was the first Mithran dance found, we believe we won't get that as a Dancer but it's just what an NPC does.
The video essentially shows 3 different dances, two look very similar but one is just a shorter version (probably the finishing moves) of the other. There's jumping around, jumping around less and the Irish/river dance-esque step movements. Or for Galka, throwing weight around, throwing weight around and stomping
All races essentially share the same dances and just perform them slightly differently. Hume and Elvaan are practically idental. Mithra tend to exaggerate the arm movements and also make the movement more fluid. Taru jump around like yoda in that Star Wars movie

(both genders have the same animations for Taru. Galka is powerful motions, more like a war dance than an actual dance.
Edit: I think Elvaan should dance like they have a stick up their arse, because they certainly act like they have one up there
