That dance does look kinda new. I think it’s the hop in it that goes a bit at an angle as opposed to just straight up in the air. Here is the regular Ogre dance for comparison:
Could be something specific for that Moonkin form as opposed to adding it to Ogres. Maybe we’d see it in new Ogre models at best, unless the older Ogre models also got that dance. Though I do think it fits Ogres better to just jump up in the air as opposed to at a slight angle.
I still think that dance works great for male Ogres and should be their dance for a playable model. It’s already there, it’s iconic for male Ogres, and I think people would still like it for the playable models. The female Ogre dance would still be exciting news, let alone female Ogres in general and two-head customization options if that can get working.
I can imagine hosting an Ogre dance party in Orgrimmar when playable Ogres beome playable, if we ever get lucky enough to get them as a playable Horde race of course! 
—47 days until Blizzcon starts (Nov. 3rd)!—
-Dream big, Ogre fans! 
