Robit Studios and Chucklefish are collaborating on Treasure Adventure World: a commercial, HD remake of Treasure Adventure Game (a wonderful, freeware Metroidvania from 2011). Their press release shares some of the main changes to expect from the new version:
– New engine, smoother gameplay, HD widescreen mode
– High-res, hand-drawn art by Christine Crossley
– New music and sound by Robert Ellis
– More treasures and collectibles, remixed puzzles and new equipment
– Improvements to enemy AI, more intense boss fights
– More tightly-focused story, intriguing cutscenes, charming NPCs and new multiple endings
There is also some info in the Indie Statik post on TAW, which helps to expand upon the press release.
Additionally, those curious about experiencing the game’s earlier incarnations can download Karma as an exclusive bonus from the GOG.com release of TAG. The games in Karma aren’t as fully polished as TAG was, but they are great samples of how drastic development can be from one iteration to the next.