...because we hate retcons and they can be dead in someone's game. Or killed in a book or comic or something. They can be alive in somebody's game, but that doesn't matter.
Let's start with the obvious, no matter what BioWare has done in the past, because, you know, one dev said in one interview that they really hate bringing dead characters back. Please help me out if I've missed a few.
The Warden
Alistair
Morrigan
Leliana
Sten
Shale
Dog
Wynne
Zevran
Anders
Loghain
Oghren
Sigrun
Velanna
Nathaniel
Hawke
Fenris
Iron Bull
Branka
Cauthrien
Jowan
Avernus
Isolde
Kitty
Bevin
Bella
Berwick
Kaitlyn
Cammen
Gheyna
Zathrian
Amalia
Bhelen
Harrowmont
Ignacio
The Architect
Carver
Bethany
Danarius
Ginnis
Idunna
Javaris
Gascard
Danzig
Bartrand
Esmeral Abernache
Ser Barris
Michel
Fiona
Flissa
Minaeve
Adan
Lysette
Segrit
Abelas
Kieran
Celene
Florianne
Gaspard
Briala
Dang, I only got into the K's on the Dragon Age Wiki. This is too hard.
EDIT: I'm adding in some of the replies I've made further along in the thread, because some folks are (rightly) confused as to what I was trying to do here.
My point is that I'm tired of having it both ways. Morrigan gets stabbed, but she lives. Abelas gets stabbed, but because some people don't love him as much as Morrigan, he should stay dead.
What I would like to see is a way where everyone gets what they want. Where the choices made in the Keep actually reflect what we get, instead of handwaves or cutting characters out. I refuse to believe that it is impossible. They did quite a good job of it in Mass Effect via inserting other characters in empty slots, and I have faith that they can make it work in Dragon Age.
What I am suggesting is, for example,
If you killed Michel, you get either another chevalier, or you get Imshael wearing Michel's hapless skin like a suit.
If you killed Abelas, you get another sentinel, probably one of the ones he led.
Both of these options would only require small conversation changes if BioWare wanted to be cheap, but they could turn out to be really compelling choices as they are. This is what I miss about the old games: both branches are equally compelling, not just the "right" one, where the "wrong" one gets a codex entry.
It's a shame that i didn't find this topic earlier,since it is from october but let's analyze this Op character by character
in regard of their death circumstances and if that death was meant to be definitive or not.
1)The Warden is the protagonist of the first installment and can be killed via Ultimate sacrifice,no retcon here aside from the choice made by bioware in regard of DAA for problems related to the save import system,there was no way to use the Orlesian warden and maintain the choices of the warden of DAO without the console commands .
2)AListair is definitely killable in 2 way,the archdemon and by Anora,the nightmare demon may have as well killed him.
3)Morrigan is alive because she is a writer pet since she was protected in Wh from the warden who didn't struck the attack into a vital organ and didn't follow her to attack her again but instead pushed her into the mirror out of the player control
(My warden who fail to murderer someone in that way is unrealistic).
In DAI she also survive for no reason whatsoever against the red lyrium dragon that finished her with a seismic movement from the sky an crushed her into the ground.
The Mythal guardian is killed from that attack while Morrigan was protected by plot armor,seriously i wish that someone would find a way to explain how she survived to this other than "it was plot armor"......
4)Another annoying writer pet like Morrigan,unkillable and resurrected with a contrived explanation,she appeared in the new novel mage killer.
5)Sten who knows if he is dead if he is left in that cage? Maybe
6)Can be killed,i don't believe that she survived,also she was a Dlc companion so i doubt Bioware care to bring her back.
7)Only the dogs from the noble origin or Hawke family are unkillable,but they are dogs so more than 15 years they can't live.
8)Wynne is dead regardless of what the player decide.
9)Zevran,Anders and Loghain,Oghren,Sirgun,Velanna and Nathaniel can all be killed,with Oghren i would like to remember that Bioware resurrected him with no explanation but he can be killed in DAA again
10)Hawke is ambiguous i think it comes down to what the developers want to do,but in 2 years nobody has a news from Hawke,so who knows maybe the champion is a spirit now?
11)Fenris Iron Bull,Branka,Cauthrien,Jowan,Avernus,Isolde,Kitty,Bevin,Bella,Kaitlyn,Cammen,Gheya Zathrian,Amalia,Bhelen,Harrowmont,Ignacio are all killable
however personally i would say that kill Avernus would be pretty much a stupid thing to do for the Warden,i don't kill the one who will make me semi immortal,in my headcanon my warden is a research that work with him in painful experiments! Avernus is truly the only one of whom i ca re in the franchise.
12)The Architect is not dead but idoubt will be in a sequel,he probably used Shianni as a backup to survive and also he was planned to be in DAI and work with Corypheus,can't you imagine the two old friends together once again!
All the others aside from Abelas whom like you can see in the video did something weird with his soul who left his body before of his death(ala Corypheus) are killable or in the case of Kieran not even concieved.
So Aside from thess charcters:
Leliana,Morrigan,The Architect and Abelas i except all of these characters of your list to not return.
However i would like to point out that characters like Leliana and Morrigan already had plenty of screen time,so even if they are alive i doubt that the developers will renounce to take into account player fatigue this time around,bring them back again.......no please no! Boware