Mild spoilers ahead:
So, from what I've been gathering it was really heavily implied by the writter at FanFest that the current scions, or most of them (I doubt Graha is making an exit so soon) will be getting their finales in EW, and we will likely get new ones in 6.x-7.0.

I wonder, what kind of scion would you like to see? What race, job or personality would you like them to have and why?