Quick thought about the Future NieR Raid.

Alright, I never really finished Automata, but I know about Adam and Eve. And when another user said they could be the next boss, I realised we actually have a hint at that.
Remember Blufever, who were quite on point with their leaks? Well, back then they announced Omega M and F as Adam and Eve, but it seemed that their name was changed later in the production. But why was it changed? Looking at the timing, they most likely already made plans about the Collaboration Raid. And they changed the name of the Final Omega Tier because those boss names would be needed later...
Just speculation.