Don't know Poppo. We will have to see, as other than they intend to release more additions to the Roman market and they released some fruit and veg to go on market stalls, that's all we know at present, though personally, I wouldn't be buying them since other than Nubians, there wasn't a large population in the Roman Empire. Other Africans being for the most part, of the lighter skinned and featured types from Egyptians to Berbers, despite what revisionist would have you believe !
The Slaver TG did were obviously based on Oliver Reed's character in Gladiator, but would be just as suitable for a Barbary Coast Slave Market from where funnily enough the Barbary Coast Pirates operated, raiding up as far as Iceland and taking prisoners there as well as in Northern Europe including on the Cornish coast here in England, who they later sold in their Markets in North Africa.
Perhaps they will explore the Slave trade further, though I can't see that such a range would garner much in the way of sales for TG.
Reading about the Slave Markets in Middle Eastern countries was quite interesting, which apparently was bigger than the transatlantic trade. Quite shocking to read the treatment many received being far more inhumane as to what they might expect by those mostly traded by West African tribal Chiefs.
I could go on, but leave it to anyone interested to do their own reading and it explains a lot to modern demographics.