I never really thought of this "identity" stuff as something to really be concerned with. It seems to me that what people want is for the setting to stagnate and stay the same throughout the entire series. What is the identity of Dragon Age when we go to new locations, have new protagonists, new companions and new plots in each game, possibly having years in between?
I do not believe that he was referring specifically to the setting actually, when he mentioned the identity of the Dragon age,after all everyone knows that each nation in Thedas is quite different.
However from a technical point of view, sometimes this franchise it seems to not know what it want to be,
-An RPG with driven side quests and multi race each with an Origin,
-A game without multi race and a more fleshed out protagonist
- MMO semi- open world with fetch quests and with multi race options poorly implemented and poorly executed ala Skyrim?
i'm sure that in order to satisfy their fan base in DA4 they will pack all these elements together,after all it seems that if you want to make a good soup you have to put as many ingredients as possible in your recipe,this is the way in which the DA team seems to work, a little bit of DAO,a little bit of Skyrim,a little bit of the Witcher,a little bit of fans suggestions and we will have DA4.