Well, you've seen the announcement about the new book. WizKids is coming in next with figures specifically for it. They've announced a new Icons of the Realms miniatures set, and it's all about Baldur's Gate: Descent Into Avernus. There's even a pimped-out Infernal Machine you can get.
Baldur's Gate: Descent Into Avernus
Aw hell... literally. Wizards of the Coast is taking your D&D game straight to hell in Baldur's Gate: Descent into Avernus. This new adventure takes players all the way from Level 1 up to Level 13 (seems appropriate for a trip through hell). You can even get your own Infernal War Machines and cruise hell's landscape in style.