What Duncan would've done if he'd survived Ostagar

How do you think Duncan would've acted during the Fifth Blight and around the rest of the party if he survived Ostagar instead of the Warden?
Duncan seems like by "by any means necessary" type of guy, who's only intent is stopping the Blight.

My guesses
>Gets on with Wynne, Leliana, Oghren
>Puts Zevran through the Joining
>Neutral to Sten and Shale, albeit warms to them later on
>Distrusts Morrigan and Flemeth, although spares Flemeth because he did save his life and has never threatened him

>Does all the good choices in the urn/dwarves/elves/redcliff.mages quest
>Tells Alistair to suck it up and put Loghain through the Joining, though leave him on the throne with Anora
>Refuses Morrigans ritual
>Probably kills the Archdemon himself instead of Loghain because his calling is much closer to approaching
>Probably kills the Architect if he can pull out another 6 months for Awakening