What would be included, or should be included is:
Remakes:
Remake of the textures and models for each prince.
Remake of the dialogue.
Remake of the quests.
Remake of the locations or environmental details.
Additions:
Adding the requirements performing certain rituals and paying in order to summon them.
Adding New models and Textures.
Adding new unique and immersing dialogue.
Adding new armor or weapons or items.
Adding new locations.
Adding new abilities.
Adding new factions.
Adding new Graphics.
I don't know if I'm the only one who'd enjoy seeing a remake, but I really like that mod.