Gamespy had a chat with Chris Perkins, story manager for Dungeons and Dragons R&D, at this year's Gen Con. Though Chris had no more details to offer Gamespy than he did for us at the event, the piece puts a lot of information all into one place on what we can expect from D&D Fourth Edition.
"GameSpy: We've been reading a lot about talent trees in 4th Edition ... Christopher Perkins: Talent trees aren't unique to MMORPGs. Wizards has produced other games that use talent trees, such as the d20 Modern Roleplaying Game and the Star Wars Roleplaying Game Saga Edition. The theory of game design, regardless of platform, is constantly evolving. We've taken our gaming experiences over the past decade, as well as player feedback on the games and supplements we've produced in that time period, to build a system for character creation and advancement in 4th Edition that draws inspiration from numerous sources, but isn't exactly like anything that's been done before."