I already posted this elsewhere.
I belive that it should/could be that kid that King He-Man adopts who became He-Ro.
Neither knew who he really was. Now we do. That would be completely awesome.
Also explain how he can channel the power. Next generation of Grayskull descendant via Keldor!
Though I loved that series bible, It always irked me that He-Man adopted a son. But now it all works.
I sincerely hope that is the direction they will be going.