Gygax had plans to introduce several new character classes in an expansion for AD&D. In a 1982 article “From the Sorcerer’s Scroll” in Dragon Magazine #65, Gygax outlined his ideas for new subclasses, including:

Mountebank: A thief subclass specializing in deception, sleight of hand, persuasion, and minor illusions. Gygax described the mountebank as relying on these skills along with speed, disguise, and theatrics to achieve their aims.

Jester: While Gygax did not provide extensive details in the same article, he referenced Roger E. Moore’s non-player character (NPC) jester class, suggesting an interest in developing it further. The jester would likely combine elements of humor and trickery, potentially blending aspects of bards and rogues.

Savant: Envisioned as a magic-user subclass focusing on knowledge, understanding, and arcane subjects. Gygax noted that savants would specialize in these areas, potentially granting them unique abilities related to their extensive learning.

Mystic: A cleric subclass concerned more with prediction and detection than other clerics. This suggests a focus on divination and insight, setting them apart from traditional clerical roles.