I mean, the fact that the 2 race DLCS for TW:WH 2 had 4 legendary lords on launch, a full army roster, unique gameplay mechanics, and a bunch of in-game cinematics to boot, probably ate up a lot more time and resources than, say, the Beastmen DLC.
The Beastmen DLC only had 2 legendary lords at launch (3 with the release of Morghur), an incomplete army roster (Wargors, Doombulls, Ghorgons, Jabberslythes are missing, just to name a few) with most of the units reskinned from Warriors of Chaos, no overtly unique game mechanics (Warriors of Chaos was already a Chaos Corruption-spreading Horde faction, Greenskins were already a terrain-ignoring raiding focused faction that got an extra army for fighting, and the only other thing Beastmen got was a pop-up event that happened every few turns), a fairly mediocre mini-campaign, and a single cinematic (though the cinematic was pretty baller).
And to top it off, they had the audacity to charge the exact same price for Beastmen as they did for the TW:WH 2 DLC races!
But I digress.
You’re probably right that 3 Kingdoms is what’s eating up all of CA’s time though. If it was me, I’d rather they finish up what they’re already doing first (that being TW:WH 2) before they start moving into new games.
I doubt the “remade” Norsca DLC is the problem. The only thing they had to do was just port it from game 1 to game 2, which, shouldn’t have been more difficult than just porting something like, say, the Empire.
You’re right that it’s a possibility they’re going to make Kislev the 4th playable faction, what with them fighting against Chaos a lot of the time, which would fit with the simultaneous release of the Daemons of Chaos.
However, that leaves 3 possible scenarios.
A. Cathay, Nippon, and Kingdoms of Ind will be added, but they will all use recycled Empire units.
B. Cathay, Nippon, and Kingdoms of Ind will be added with unique army rosters, but won’t be playable (or, Sigmar forbid it, as either paid DLC later on, or a pre-order bonus like Warriors of Chaos).
C. Cathay, Nippon, and Kingdoms of Ind won’t be added at all.
All of these scenarios seem detrimental to the game for me. The first option really breaks the immersion, the second one just seems like waste of effort and a scummy way milk even more money out of the consumer, and the third one would leave huge chunks of land simply unused.
Honestly, I wouldn’t even be mad if they just port units from 3 Kingdoms into the army roster of Cathay, as I can imagine at least most of the infantry units would be fairly similar.