[Update #2]: The latest gameplay focused preview shows off the armies of Slaanesh crushing an offensive from Nurgle.
[Update]: Good news, Creative Assembly has now finally released a preview of the campaign map!
Even though we've seen a fair few Slaaneshi daemons in action through the past few previews, they mostly served as punching bags for Nurgle's forces given that the focus was fully on the Lord of Decay. Now, however, it seems that it's time for indulgence, agony, and glorious excess!
So if you're curious what the daemons of Slaanesh have to offers, as well as just how spikey their army truly is, allow me to share with you the freshly posted "Enter the World of Slaanesh" preview. Have a gander:
While the whole 'pleasure' angle seems to have been downplayed heavily, for obvious reasons, I really do like the new Slaanesh models. I especially love how graceful N'Kari looks in that ending shot. It's almost like the whole battle is just a theater play for them, which considering what Slaanesh is all about, seems like a perfect fit!
On an unrelated note, it's also worth mentioning that there is still one more major announcement to go - the reveal of the final Legendary Lord. It's currently unknown who this will be, but considering his importance in the lore and his status among the fans, I think it's highly likely that it'll be Be'lakor leading some sort of Chaos Undivided faction.
Whatever the answer may be, I'll make sure to let you know as soon as Creative Assembly does the announcement. Until then, you can read a little bit more about Total War: Warhammer 3 over at the official FAQ.