According to the new season 3 sprint episodes, here:
These are the Big Team Battle / DLC maps that we know of so far:
Big Team Battle: (community forge maps built by the “cartographers” that visited 343 Industries
-
Sidewinder / Avalanche Remake (Glacier Canvas / Day)
-
Standoff Remake (Alpine Canvas / Sunset)
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Burial Mounds Remake (Space Canvas / Ring theme)
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Longbow Remake (Glacier Canvas / Sunrise)
-
Headlong Remake (Alpine Canvas / Cloudy)
-
Blood Gulch Remake (Alpine Canvas / Looks like Sunrise / Sunset theme)
**This blood gulch remake was shown off as created by 343 themselves.
Remix Arena Maps:
- Fathom Remix
- The Rig Remix
**I would also speculate that the city map for warzone (shown in the MP gamescon trailer) will be one of the warzone DLC maps since it was not in the final game.
Whether these maps count towards the actual 18+ free DLC maps remains to be seen. But if these maps did count towards that total, then that would 8 of the free DLC maps, with one more map possibly being from the city warzone map, making it a total of 9 maps… then if you include warzone assault variants, the city map would make it 10 maps.
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This is just speculation though.