Based on news that has trickled out over the past few years, previous patterns and common sense, i think we can predict the races for tww3
-most likely faction
-also quite likely and unique enough from demons to constitute the 2 "bad" race
-The largest non booked race and could fit the map if it goes east and would allow for them to flex their creative mussels. So many possibilities and i mean they just did 3 kingdoms.
4: this i think will be a surprise, possibly human realms or some obscure race from the lore that leans towards order. Or entirely original.
First dlc will be ogre kingdoms unless they try to lean into the neutral context and they are the 4th starting race.
I also think its highly likely that 3 will eventually get all the races that people talk about like kislev and araby, even obscure ones like the amazons. because this game is pulling in players and as long as they are making money they will make dlc.
Chaos warriors, empire and wood elves are going to get some form of overhaul as well, just be patient.
I also reckon we will get 10+ lord packs over the next 5 years or so.
Obviously they have to be careful not to **** off the purists, but i believe this game could really grow. future "offical" lore from gw wont happen, lets be honest warhammer fantasy is the past for them, as long as ca keeps it true to the series i have no problem with them expanding it.