Quote Originally Posted by Flynn89 View Post
Looks to me like ninjas are now getting an elemental gap-closer. I think the developers are simply making the mudras elemental, and giving us the ability to elementally charge our oGCD's. Could be wrong though.

Another possibility is that they're attaching multiple abilities to every element.
From the job notes after the trailer ("Actions linked to Raiton, Doton and Huton will be added"), it seems more like Raiton has a follow up attack/combo.