Total War: Warhammer 3's Immortal Empires DLC is coming in August, with big changes

pcgamer.com:

Immortal Empires, the free expansion for Total War: Warhammer 3 that will unite the armies and locations of all three games in some kind of unholy lasagne of fantasy wargaming, will be playable from August. Creative Assembly has begun blogging about what's changed and why it's taking so long, with the first blog(opens in new tab) introducing new features and explaining why it's launching as a beta.

Those features include a new faction led by Be'Lakor, the daemon prince antagonist of Warhammer 3's Realm of Chaos campaign, as well as dedicated factions for some Legendary Lords from the early days of Total War: Warhammer, with Grombrindal, Helman Ghorst, and Volkmar the Grim rating a mention. Some factions will be revised as well, with new starting locations and improved mechanics.

To deal with the world being round, Sea Lanes are being added to let armies travel from one side of the world to the other «without leapfrogging». There's no more information than that, but I'm hoping it works like the trade caravans in Cathay's campaign, which face dilemmas as they travel that might result in, say, having to cut a deal with ogres or fight them to get past. That would certainly liven up long naval voyages.

Since Warhammer 2's equivalent DLC, the Mortal Empires campaign, could end with your overpowered armies slowly grinding your final opponents to dust, randomized «dynamic end-game scenarios» will shake things up. The examples provided are «Greenskin invasions or resurgences of the undead». Fingers crossed for something like the crisis events that liven up the late-game in Stellaris. 

Victory requirements have also been simplified, and Creative Assembly's manager added that completing objectives along the way will give