Remember, this is list of girls who got buff. There are 7, well 6 now. Fire - 1, Thunder - 1, and the rest is light. So, a high chance light maybe targeted this cycle. Wind, Thunder, and Darkness going to have a random need a buff girl for this. I said thunder too because Mammon is below the margin and Atum will get her awakening before her due to time of release.
If you think these 2 are getting it yet, you are fool. Metatron will be first unless they wait for the margin to extend then it Eros. It's all about who deserves it first among the light. As for who's next element wise, I say Darkness is due to how fast they hit the board. As for who, I will come back to that after some research.