Board Thread:Theories and Rumors/@comment-25015873-20141221222706/@comment-25374175-20150815020748

Possibly. But on the LEGO description about the Elemental Dragons, it stated that Wu didn’t explain the full powers of a true potential (you can unlock an elemental creature which also implied for the people who also unlocked their full potential: the contestants in the Tournament of Elements including the Ninja).

In spite of Nya using her True Potential in the last episode of the fifth season, she did not have a dragon or use Spinjitzu.

The four Ninja—Cole, Jay, Zane, and Kai—have a unique case of the powers of their True Potential; the other Elemental Fighters could use their powers without assistance (the four heroes needed Lloyd to pass his powers), however the Ninja’s potential is tied up to their Golden Weapon. With the weapon set up in space p, they cannot rely on their true potential so they have to depend in Lloyd’s transfer of power.