Last executions list included characters feats. I'm sure we'd all love to see emotes from the story mode cutscenes.
Knights:
Warden:
Have him/her take out his oath's emblem then say "I took an Oath.. To fight for peace" Then have him hold his emblem up & pause for a second and have him throw that emblem away just like in this cutscene:
https://youtu.be/kOkQz2IRyKc?t=132 (
Do not have him/her say "So did you, all of you")
Conqueror
Have him/her facepalm and say "Is this a joke?" just like in this cutscene:
https://youtu.be/2r-yr-xcGdw?t=69
Lawbringer
Have him say "We're finished here" as he takes off & drops his helmet or some weapon just like in this cutscene:
https://youtu.be/6HoNlPerdC4?t=65
Peacekeeper, Gladiator, Centurion, Black Prior
Left to the developers to decide.
Vikings:
Raider
Have him/her say "You and your warriors, will learn to live like the rest of us, or you will become food for crows!" just like in this cutscene:
https://youtu.be/akyxOfbqwEA?t=499
War Lord
Have him say "Prepare to die!" just like in this cutscene:
https://youtu.be/yacXJqRFzj4?t=1712
Berserker
For female berserker I'd recommend adding the "Raider!" just like in this cutscene:
https://www.youtube.com/watch?v=1Oj-fRsjz3o
For male berserker, have him say "Valhalla" just like in this cutscene:
https://youtu.be/NHrdnf1mTlQ?t=1177
Valkyrie
Have her say "I'll end that one" just like in this cutscene:
https://youtu.be/yacXJqRFzj4?t=765
Highlander, Shaman, Jormungandr
Left to the developers to decide.
Samurai:
Kensei
Have him/her say "It was you. Savage. You have destroyed everything" just like in this cutscene:
https://youtu.be/yacXJqRFzj4?t=3066
Orochi
Have him/her say "Yield. Face Justice!"
https://youtu.be/yacXJqRFzj4?t=5073
Nobushi
Have her say "I don't think that's a very good idea" just like in this cutscene:
https://youtu.be/yacXJqRFzj4?t=4452
Shugoki, Aramusha, Shinobi, Sakura
Left to the developers to decide.