Old races with a twist.
No matter what they make, the races will always reassemble the archetypes like elves, dwarves, gnomes, humans, etc. Just look at e.g. Guild Wars 2. New races? Unique? Sylvari are pretty much the elves, asura gnomes, charr have an orkish feel to them, while norns are well... shapeshifting viking humans.
What is originality is not making things look different, but feel different.