I'm not going to detract from the suggestion, but to shed light on the type of game this is, let me list off some features the game had that I think would pose a formidable challenge in rebranding:
Fully 3D World based in the King's Quest realm
Several Hours of Gameplay
Intimately-Woven Story
Fully Voice Acted
Animated Faces during Speech Sequences
Difficulty of changing proper nouns would involve, I imagine:
- Repainting several textures
- Possibly Remodelling Certain 3D Models and Environments
- Rewriting the story to not be based in the King's Quest saga
- Recontacting several voice actors to revoice rewritten dialogue / Recasting lost voice actors to revoice rewritten dialogue
- Reworking 3D Face Animations on All Dialogue Sequences
There's other stuff that I am unsure I can mention, but it is truly a difficult path to go down--albeit perhaps a necessary one in the future.