In the upcoming patch 0.13.00 along with many other features, you'll get nine Heroes to lead your companies, three for each faction. Below you'll find their names and links to previews of their biographies and stats.
Lion
Silienne of Laverne : click here for the preview
Arïnius the Proud, Royal Guard : no preview yet
The Chimera : no preview yet
Ram
Kaïn, the Scourge : click here for the preview
Melmoth, Skûll Warriorclick here for the preview
Kerberos, Flesh Golem : no preview yet
Wolf
Emerok, Guardian of the Runes : no preview yet
Ryskar, Predator of Blood : click here for the preview
Kelrys, Son of Yllia : no preview yet
Don't forget to check the discussions for more details about the changes to come.