In a technical sense: Not futa,but something of the like... yes.. most likely (not a mandatory route, mind you).
What would that entail, and will Aether be getting fucked in the ass?
The 6th ally is an alien that will have a dick (and tits). They will have at least 4 Hscenes. You will likely be able to engage with them as both male, and female Aether. The exact specifics are in the works, but it is likely.
