Naga and Vrykul/Furbolg
and no. Having Pandaren does not mean we can't have Furbolgs. they can co-exist in the same manner that Blood Elves and Night Elves do. Furbolgs are fierce, ferocious while Pandaren are graceful. imo Furbolgs are even more appealing than Pandaren because they're not as cartoonish as silly as Pandaren.