I wasn't talking about the inability to import saves so much as the impracticality
in writing around what's said to be a slew of drastically differing endpoints.
I'm not saying they can't just pick a canon ending, of course they can. They could pick one or as with DAII, present two or three archetypal variations for the player to choose from the onset. What I am saying is that it'd be a shame to abandon all the accumulated personal choices across the three games.
Of course it's all moot since we don't know yet how things can possibly end up. Sure we can make some educated guesses, but until the game is on the shelves, guessing is all we can do.