When the choice came up I just couldn't bring myself to sacrifice Alistair, even though I adored my Hawke (who totally wasn't behaving in his usual sarcastic tone, which annoyed me). It's a horrible choice, my Dragon Age 2 protagonist that took me years to perfect and was the only one that made me appreciate DA2, or the life partner of my Amell Warden and the guy that made me realise how badly I was being treated IRL by my ex... awful, awful choice.
I asked a dev and there's no way you can have both survive. I guess it's my fault for only having one cannon Warden and Hawke... I get very attached to them, lol.
So now I have to change my canon. I'd purposely kept Alistair as a Warden because I prefer him that way and he and my Amell stayed together. You should've heard him during the quest gushing on and on about how she's the love of his life and that when she returns from her super important mission to cure the taint they'll be together forever, I figured that was probably foreshadowing for something, lol. Later I received a letter from her telling me to keep Alistair safe because she wouldn't be able to handle losing him. Then of course I had to deal with Varric who was utterly heart broken that I'd let Hawke die.
I'm annoyed because it kinda feels like they really wanna push for the whole King Alistair thing, what with the comics etc and now this. Alas, I couldn't bear to have either Alistair or my Warden die, so I'm gonna have to make my canon Warden a Cousland and marry him, since I'm not keen on the whole mistress and hardening thing.
As for the Morrigan thing, I hadn't realised she had the kid regardless. Didn't Gaider say that if you didn't do the Dark Ritual then there's no sprog? Maybe it's a glitch, gawd knows mine was buggy as hell!