Interesting what is lost 12,000 years after. Deava Elements at least knew that they were reincarnated from Elements during Atlandia-Sangrila war between Shadow Angels and Humans 12,000 years beforehand. Neo Deava doesn't have a clue about Solar Wings Apollinius nor about reincarnation.
I find also intriguing that Amata's power anti-gravity is the direct opposite of what Gen Fudo taught Apollo and the Elements to connect with the Earth. That and his feet has wings much like Shadow Angel Futaba who was slaughtered to create the Assault Aquarion systems.
More speculation.
Given the Abductors have an image of Alisia and Alisia in Amata's vision is taken by Aquarion Evol I think I may have a clue on who the Abductors could be. They are not Shadow Angels nor are they Humans. Shadow Angel-like Humans and Human-like Shadow Angels. Creations of Sangrila, Apollinius and Celine's capital. Alisia is the kingdom of Sirius and Sylvia that fell. Altea the motherland that wont accept them refers to Earth.
You see Alisia which became the home of Deava is Sangrila.