Killer Instinct's Season 3 is almost upon us on Xbox One and Windows 10 PC. The new content starts to roll in on March 29. We already know most of the new characters (Arbiter from Halo, Rash from Battletoads, Kim Wu, Tusk & Gargos), but today two additional characters have been revealed/leaked by Shoryuken.com.
The first is another guest star and a somewhat strange one. It's General Raam from the very first Gears of War game. The second character is "a native" to Killer Instinct named Mira who was introduced in the story as Maya's late twin sister.
https://shoryuken.com/2016/03/10/killer-instinct-leaks-reveal-more-of-season-3-cast/