Things are finally starting back up after a long period of nothing. Dungeon Bout is still the main focus of development here. It's been released for testing HERE. Only the 2 player vs mode is availible right now, but the story mode is well underway.
Four worlds with 7 stages each are currently planned with an arena mode unlocked after for player vs computer matches after the story mode is over. As far as unlockables go, they are still being planned out, but there should be a good amount when the game is complete.
There's still no release date, but hopefully things will be at least mostly done by the end of the year.