After I meet Sazza and talked with the various goblins in my first run I get interested in how much potential they have as a race.
In D'nD we've seen the rise of races into non aggressive cooperation (not integration, I can not see that as coherent with a medieval setting): Thieflings, Drow, Hobgoblins, Orcs.
Obviously to me is crystal clear that in this particular and specific set a Goblin character would be so difficult to manage that it would make it almost impossible to create a credible coherent background (it's already difficult to accept that Drows can easily go around without almost no serious reactions), the problem, to me, in this case is not the society fact because full armor, mimetic spells, can allow the Giblin to move without a big red flashy target pointing to them, the problem is to create companions with a background that justify their interactions withe the Goblin.
In BG 3 there is already a lot of criticism about three companions (Astarion, Shadowheart, Laez'el) because of their background, personalities, and motivations.
So in this game I don't think they will implement a playable Goblin (but maybe we would see non aggressive Goblins, or Goblins that left their faith, choose another god, or none, didn't embraced the Absolute and try their own route).
nevertheless it would be a fascinating campaign (both table top and videogame) that centered on the rise of the Goblins from tribal and fractioned to a more complex society and to a race able to interact with others not only by pillaging but also by commerce, spionage, culture exchange (or appropriation) and so on (just like in the Elders Scrolls setting they show the rise of orcs from tribal pillager warriors to a powerful kingdom).
