I suposse this time they are going to await more time for the feedback. They will publish something about cruch, some PC races and monsters, but nothing of lore yet. Kara-Tur is possible within DMGuild because it is practically a spin-off of Forgotten Realms. Maybe the lineage of the spellcales are reintroduced as offsprings of the lungs(the dragons who work for the heavenly bureaucracy). I imagine here Hasbro is taking care a lot with the Japanese market, and my theory is we will see a new-brand setting created by Japaneses. I unknow how is the Korean market now but their "soft-power" is growing. The multinational Hasbro will be better informed than us about Chinese market and potential risks. And even some PC lineages should be redesigned because reasons of gameplay, because the racial traits of the shens weren't very interesting if you wanted a practical build.
I don't know your society, but in Iberoamerica the mixture of blood was so common than even there was a special lvocabulary of termes for the different types of mixtures. And I don't rembember racial conflicts in Guinea Ecuatorial when this was still part of Spain (here it wasn't a conquer like the rest of powers in the age of colonialism, but joined voluntary). Of course always there is bad people in every where and every time, but this doesn't mean it had to be usual.
If you want to use your story to report actions, then be subtile and diplomatic, because the people don't want to have to feel guilty and ashamed because shameful things happened generations ago.
Here in Spain "thanks monopoly" we don't suffer theological conflicts between Catholics and Protestants, but the world of the culture has been very hostile against the faith for more a century. When I complain about the abuse of the trope of the "sinniste ministers" it is not only because it's annoying for my own values, but potentially dangerous as a subtile hate incitement. In the past frays were killed for riots by false rumors about children being gaven posioned candies. And I feel unconfortable with the dark lord of G'Henna in the setting "Ravenloft". I don't want to ban to use characters as cardenal Richelieu as antagonists in your stories, but please, try to avoid the abuse of the trope in the name of the good sense.
If you say there are racist tropes in Tolkien's middle earth then I can say there are Hispanophobic tropes in Ixalan, the world of Magic: the Gathering where the vampire were wearing morrions (the helmet used by Spanishs conquerors in the New World). Maybe in your mind it is not offensive, but a Spaniard who is very sick with the anti-Spanish black legend would have a different opinion.
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