Kul'tiras really fits in with the Human Mages bit. (Novel)
Dragons come into play specifically with the Blues and their magic. Also Jaina's man is a blue dragon. (Ion's 'Hint')
Trolls always fit.
Location is where the expansion (or close to) will be set.
It all fits honestly, although it may be the first novel in a long while that has nothing to do with the expansion at hand. Either or I will read it.