From the announcement:
As the Latari Elves enter the battle for Terrinoth, they will call on all the reinforcements they can muster. From archers who have spent centuries honing their craft, to beast riders whose wild fury knows no bounds, to the very forest itself, the forces of the Latari Elves are numerous. Now, these warriors charge into battle with three new expansions for Runewars Miniatures Game!
Deepwood Archers Unit Expansion
Leonx Riders Unit Expansion
Aymhelin Scions Unit Expansion
All three of these expansions allow you to expand your Latari Elves army with units identical to those found in the Latari Elves Army Expansion, and include new upgrade cards and additional tokens.
You'll be able to pick up these sets in the 3rd quarter of this year.