I doubt that they'll go back to how ridiculously dark the original one was with the writers at Bioware now, but if they can make it play better than Inquisition and have less shitty mmo-esque sidequests, i'm there.
"With the first link, the chain is forged. The first speech censured... the first thought forbidden... the first freedom denied – chains us all irrevocably."
I think they should do a combination of the two. Have some big open world type zones, but much fewer than they had in Inquisition, have maybe 3 or 4 instead of 12 or whatever they had, and flesh out those 3 or 4 very well. They should look to The Witcher as far as how to do an open world game, don't need a ton of areas, just need to have the areas that are there be good, and then also have a lot more linear story bits than they had in Inquisition.