In my opinion I thought the inclusion of Hawke as a NPC was well done. And since I have no weird Warden fetish with my old characters, I would have no issues with us as the Inquisitor(because at the end of the day this IS NOT Mass Effect, the Inquisitor, Hawke, the Warden, are all just vessels to allow us to explore the world of Thedas) helping out the Warden with their quest to end the calling once and for all.
I think they were using Hawke as a way to test the waters with bringing back the Warden the same way, and I don't see this forum flooded with tears over Hawke being Hawke but the Warden is alas the Warden and as I mentioned earlier, odd fetishes are abound, but I feel the majority of people will accept it if it means the Warden shows back up.
Plus since we know the HoF is doing Warden business, one would assume he his with his Warden buddies which means, yes, for the third time, OGHREN RETURNS!!!!!!!!!!!!!
Oh the troubles my Dwarf Inquisitor will get up to with Oghren, Varric and the casteless Dwarven paragon. Such fun to be had.