I could care less about the races as there are no racial buffs. They are one in the same. I would add racial attributes, human earn more from killing minions of the dark or something like that. Awoken get a buff in void calsses, and exos have more base strength. To make it it worth while to choose one over the other. As far as classes go I'd like to see our sub classes added to to make either viable for for damage or defence. A void dps class for defender would be amazing imo. Give warlocks a buff sub class, or heals. Give hunters an ability to increase our crit damage or add to our accuracy. Lots of things they could do. I would also hope they add more synergy in our skill trees. It would be hard to rework all our current classes so I'd imagine new classes are the answer. If they do it right and tie it into the story in an easy to digest way, I for one won't be mad. These classes we have have grown stale.