Hmm. Since you've already played a Dwarf and a Human, you may as well branch out and go for either an Elf or a Qunari.
The Qunari don't get much love in this game (and because of their size the animations for them are often... awkward), but I personally find it interesting to play an outsider type who pretty much everyone distrusts from the beginning. On the other hand, Qunari make more sense as warriors or mages, I think. A Qunari archer would probably be the least common build in the DA:I community.
Elves have a HUGE amount of story-connection in Inquisition. You'll spend a lot of time in Elven ruins and learning about ancient Elven magic and lore. If story and lore connections are important to you, either human mage or Elf (any class) are definitely the way to go. Unfortunately, if you prefer to play male characters, the male Elf body model has serious issues. The poor guy looks like his arms are glued to his sides. (The female model does not have this problem at all - she stands poised with her arms out like a ballerina.) Male elves look OK in certain armors, and lots of players have managed to overlook the issue, so it's not game-breaking. Just weird. While Elven archers are a bit cliche, they make total sense from a story standpoint.
The non-mage human background in Inquisition has many loyalists in the community, but I personally find it a bit dull. It's just too easy - everyone basically accepts you. I prefer a little more drama. So I tend to roll mages and non-humans, and then make them anti-Chantry to add even more tension! What can I say, I like iconoclasts.
I hope you find this helpful! And you're in for quite a ride in Acts 2 & 3 of DAII. Makes me want to go back and play it again, in fact. I love snarky Hawke so much.