On WotC's 'Spoilers & Swag' Twitch stream, the map of Avernus was previewed along with some other images.
Map of Avernus
An unreliable map you get given at the beginning of the game by a cartographer who has lost his mind
The (Bleeding?) Citadel surrounded by "the Scab"
The Palisade
Probably a warlord hideout along the River Styx
Candlekeep
Zariel
A gigantic demon
Map of Avernus
An unreliable map you get given at the beginning of the game by a cartographer who has lost his mind
The (Bleeding?) Citadel surrounded by "the Scab"
The Palisade
Probably a warlord hideout along the River Styx
Candlekeep
Zariel
A gigantic demon