In either case, it gives a whole new take on Thordan's "who...what are you?" at the end of the battle with him. Yoshi said that the dark lighting on the WoL at the end was a mistake in lighting the cutscene, but it matches what we see at the end of the final 5.0 battle, so either it was a hint that they waved away at the time because they weren't ready to reveal it, or they retconed it into the game based on the new revelations.