I think they should have gone for a bigger swing. I mean they control D&D where is the D&D A&A? Even if D&D players dont bite en mass, a well done fantasy area movement game is in order. With the world of D&D at thier disposal they could release a whole string of games!
Maybe leverage the wonderful sculpts Wizkids has been doing - print them in smaller scale, use Greyhawk or Forgotten Realms…
You could launch army boxes in waves or maybe just do so with another game depicting a different area I dunno.
Ask and you shall have received over the past several years already. From BoardGameGeek.com;
Dungeons and Dragons Adventure System Board Games:
Based on Dungeons & Dragons 4th Edition, this series of tile exploration games bring the basics of RPGs to the Board Game realm.
Using pre-generated characters and random monster encounters with defined tactics, no Dungeon Master is required. Explore castles, mountain caverns, and the realms of the underworld in this fast paced game.
The core games in the D&D Adventure System Series can be combined to expand one another. All heroes, monsters, treasures, tokens and tiles are fully compatible.
Games in the D&D Adventure System Series can be expanded with sets from the Dungeon Command series. Dungeon Command sets include Adventure System style cards to allow the included miniatures to be immediately integrated into any of the Adventure System games, and the Dungeon Command tiles can be connected to the tiles found in the Adventure System games (although house rules would be required to determine their use in the game).
D&D Adventure System Core Games:
Dungeons & Dragons: Castle Ravenloft Board Game (2010)
Dungeons & Dragons: Wrath of Ashardalon Board Game (2011)
Dungeons & Dragons: The Legend of Drizzt Board Game (2011)
Dungeons & Dragons: Temple of Elemental Evil Board Game (2015)
Dungeons & Dragons: Tomb of Annihilation Board Game (2017)
Dungeons & Dragons: Dungeon of the Mad Mage (2019)
Then there are the other board games they have based on the D&D world such as Lords of Waterdeep that goes into other mechanisms such as worker placement and Betrayal at Baldurs Gate that is a retheme of Betrayal at House on the Hill using a co-operative-turned-all vs 1 traitor mechanic, rather than area control.