When I was checking my achievements I ran into the following indicating there might be two new Frontier Keys coming up.

I could not upload the screenshots in a strange way... but here are the challanges

GANGLAND CHALLENGE

To get Gangland Eddie

  • Clear Gangland with Virus Eddie 200 times
  • Clear Gangland with Trickster (Gunner) 200 times
  • Clear Gangland with Savage Reaper (Worrier) 200 times
  • Clear Gangland with Gangland Eddie 300 times


LABYRINTH CHALLENGE

To get Fallen Icarus Eddie

  • Clear The Labyrinth with Angel Eddie 300 times
  • Clear The Labyrinth with Lilith (Gunner) 300 times
  • Clear The Labyrinth with Angel Of Mercy (Gunner) 300 times
  • Clear The Labyrinth with Fallen Icarus 300 times