In their vision, they see: Gen, Apollo, Silivia, Touma, The Tree of Life, The Wings of the Sun, and Aquarion.
If the general idea of past life visions is the same as in the OVA then, people don't see themselves in the visions (they are the viewer). So, I think, the vision in ep 16 was from multiple reincarnations. Silvia or possibly Gen, where the only ones to have the outside perspective of Aquarion as it was sealed into the earth, yet they were also subjects in some of the visions. Sirius was missing.
I still don't want Mykage to be Touma (Yes, I know I'm standing in a river in Egypt
) ,so I'm beginning to speculate that Zessica is Touma, even though I still really want Amata to be Touma's projection.
As has been noted by many, Zessica is so similar to Silivia in elemental ability and personality. So maybe reincarnate as someone similar to your rival in your past life?
The ability to tap into the Shadow Angel Trolling Broadcast System with your mirror?
In the old series, Aquarion worked best with at least one pilot with a shadow angel soul or shadow angel genetics. Zessica is the best female pilot. Also Touma was an excellent pilot of Cherubim.
Zessica in ep 15 seemed sadly sure that it is completely futile to try to get between FATED lovers (I was incredibly impressed with Zessica being sad for Amata about this, it speaks about how much she cares about HIS happiness.
). Touma has alot of negative experiences involving trying to get between fated lovers.
Zen does not seem to care that Zessica is reincarnated. Maybe Zen, knowing that Zessica is Touma's reincarnation, simply doesn't want to encourage any past life memories if possible?
I'm really excited to see a Cherubim in the preview, I wonder if it's Mykage, or if it confirms Shadow Angel soul or genetics from someone else? I think, that Cherubim could only be piloted by Shadow Angels or part Shadow Angels in the OS.