Fire Emblem: Radiant Dawn

How do you view the final scene with Soren?

I heard that there is a special scene in the epilogue involving Soren and Almedha. How do you unlock it?

Many of the above listed requirements are for the Ike/Soren conversation in 4-E-5. For the conversation between Soren and Almedha you must do the following:

Be on your 2nd or higher playthrough
Have Soren attack Micaiah in chapter 3-7, Rivals Collide
Have Soren attack Pellas in chapter 3-Endgame
Have Pellas attack Izuka in chapter 4-5

Firstly let me point out that the exact nature of how to get the Soren conversation is unknown but people have done specific things and it has worked

Below is how I managed to get the elusive Soren conversation but others say they got it without all of this process

Must be 2nd playthrough or higher
Perform a transfer from PoR
The transfer must have Ike/Soren A grade support
In RD again Ike/Soren must have A grade support
Black Knight must be used in the 1-E Daein, Arise!
Ike must attack Black Knight on 3-7 Rivals Collide (both must survive)
In the same chapter Soren must attack Micaiah
Pelleas must not be killed and he must attack Izuka
Soren must be taken into the Tower of Obediance

This method is listed in Deathborn's FAQ so the credit should go to him since it is the method I followed in order to get the conversation

You may also have to attack Pelleas with Soren in chapter 3-E(From Pain, Awakening.)