It probably has most things in it, yeah. Discordia is available now, in theory.
I've heard that the new "Wrath" book is going to focus more on Retribution, which is both good and bad. Good in the sense that the new faction gets fleshed out, but bad in the sense that people are going to want more Retribution models (which are by far the hardest to stock).
Man, I really hope I can get the models in with any sort of reliability.
Here's what they say about Wrath:
Fuel the Engines of War!
As the fury of war shatters the fragile peace following the events of WARMACHINE: Legends, the nations of the Iron Kingdoms prepare to unleash new weapons against their foes. While old grudges bring about new hostilities, a sinister force prepares to cast its shadow across all of Immoren as events unfold that will change the Iron Kingdoms forever! WARMACHINE: Wrath heralds the next exciting chapter of the WARMACHINE saga.
Lead the charge to war with:
• New troops to bring to the fight, including six new warcasters and the debut of the mighty battle engines.
• New narrative fiction, including compelling stories for each WARMACHINE faction.
• A painting and modeling guide to help you ready your forces for battle.
• New Theme Force lists for each new warcaster, which allow you to create armies based on specialized forces found in the WARMACHINE world.