I would honestly rather that they, oh I don't know.....add more depth towards their existing races than just blatantly shoehorn in another new race which will become just as lacking in lore and customization options as the rest of the races are already. They shoe-horned Au Ra into HW and we really didn't get anything else regarding their culture until SB. That's a bigger problem.

Meanwhile, the rest of other races from ARR are left to rot on the side. There's so much more that could be added to them rather than a new race completely.