Ich mach mal den Startschuss:
The next season of Killer Instinct will include a Halo crossover. The Arbiter from the Halo franchise will join the fighting game's roster in Season 3.
Microsoft, 343 Industries and Iron Galaxy debuted The Arbiter today in a new gameplay video that appears to be missing a recognizable feature: the voice of Keith David, who has portrayed the character in the main Halo games. According to Frank O'Connor, franchise development director for Halo at 343, The Arbiter that appears in Killer Instinct is "an amalgam of historical arbiters."
Halo previously crossed into the world of fighting games with Xbox 360 game Dead or Alive 4. That title featured a guest appearance from Spartan-458, a.k.a. Nicole.
Killer Instinct season 3 is slated to hit Xbox One and Windows PC in March.