Dalish elf is too generic, I would rather have a City elf. There are story reasons why we can't be a Qun Qunari like their ideology, but there is nothing preventing City elf from being added in the game.
What makes elfs so special? Why should there be two of them over any other race? Why not peasant human as well as Nobel Human? Why not add in Nobal Dwarf? And why can't you have a Qun following Qunari? The writers could make it work, they just choose not to go down that road, for that way lies madness and the ice-cream mines.
But you see how quickly things get out of hand on a development front? There just isn't enough time, space, energy or will to carter to everyone's silly and petty desires.
Frankly speaking, while I loath the Dailish (and all elfs really) myself, they are the more interesting branch of elfs. City Elfs are just pointed eared human peasants after all.
DA:I is not DA:O nor should it really try to be. It doesn't need to give you the same options.