I made it possible for Leif and Deen to talk against the enemy Althena in chapter 23.
Previously, Leif could not climb the peaks and get to where Althena was, so he had to send Eda and she had to try to convince Althena. However, with the addition of the Wing Ring, Leif is now able to go to Althena's front. Why would Leif not go and talk to her himself? Then, I made it possible for Leif to talk to her.
Leif tries to convince her, but the conversation is the same as in FE4, and Althena leaves the map. This is the end of Althena's appearance, as FE5 does not attack Thracia.
I also made it so that Deen can also have the conversation. Even if Deen talks, Althena leaves the map.
In short, you still need to have the conversation from Eda. I did this because I thought it would be inconsistent if Leif talks Althena and she suddenly becomes an ally. It would make no sense if the events added for the sake of consistency became inconsistent.
