Will they be compatible with the same animations? How difficult will it be to give them all the different types of equipment, like the included races? I'd be more curious about how much work would be required to make them a race on par to the other races when it comes to custom campaigns. That seems like it would vastly increase the work needed to give racial reactions compared to those for Dwarves.
I suspect that the general thrust is 'orcs are assholes'. We don't have much information about the opinion of the other races towards orcs. If you want full racial reactions for orcs, that could be tricky. Now a cosmetic-only orc which looks like an orc but is treated like a human or such would certainly be easier.
So we really do not have enough information to know how much work goes into making racial-specific responses.
