I honestly would like to see a new biome, forest/swamp map with very little buildings. I havent watched todays stream but for me the different bioms are not different at all. All of them are very desolate areas with some imperial buildings. Sure arkhona is a imperial fortress world, but why even have different bioms when all of them have the same feeling. Edit: an urban map would be nice too. if it isnt TOO melee heavy (like all the other maps already)
Arkhona's Adeptus Administratum building. 5 floors, including a basement. Building is a square with a courtyard in the middle so you can see across and up and down floors. Stairs and elevators (elevators that can go up or down Devs! ) Attackers need to infiltrate the building and spawn outside. Defenders can spawn on top 2 floors and roof and need to work they're way down to meet the foe. Corridors, stairwell battles (sorry melee, you can't be useful everywhere), grand halls and large rooms (possibly with destructible cover) for firefights, smaller rooms to spring ambushes from, doors that open and close for a change and can be used for cover. Destructible walls and floors allowing you to make your own path through the building. Objectives on each floor to take and retake. Imagine The Raid or Dredd but in the 40K Universe. (It can be snowing for those that like snow!)
I'd love to see the biome variations of every map, just to add variety. And they should drop the names of all of them, remove their individuality, and just name them "Refinery Complex" or "Forge District" etc., so it actually feels like we are fighting across all of Arkhona, not 9 maps that teleport to different districts all the time.