After TSR, Gary Gygax created Dangerous Journeys. As a system, Dangerous Journeys addressed many issues with AD&D. Whereas AD&D's mechanics were based on rules imported from wargaming, Dangerous Journeys was designed to enable the telling of stories. Unfortunately, the game was sued into oblivion by TSR before it ever had a chance to take off.
Dangerous Journeys enjoys a small, faithful following today. I got a chance to see some of the key players playing Dangerous Journeys at Gary Con II. See that fat, black binder on the table? It contains the rules for Unhallowed, the never published supernatural expansion to Dangerous Journeys. There are interesting rumors surrounding the current fate of Dangerous Journeys. Although it's too early to say anything else, I've got my fingers crossed.