Information acquired by The Escapist indicates that the 5th Edition of Dungeons and Dragons will launch this summer, as indicated a few months ago by Wizards of the Coast.
The 5e starter set, which will likely include a simplified version of the rules, will be released on 15 July for $19.99. The Player's Handbook will follow on 19 August for $49.95. This price has been controversial, matching the Pathfinder core rulebook's price but not likely being anywhere near as big. The Dungeon Master Guide and Monster Manual will likely follow in September and October.
The 5th Edition of D&D has been in development for between three and four years, with the rules being publicly tested for the past two. Wizards of the Coast and their parent company Hasbro are betting a lot on the release of 5th Edition; after an initially strong start in 2008, the 4th Edition of the game soon slumped amidst controversy and Wizards lost market share first to Paizo's rival Pathfinder fantasy rules system and, more recently, Fantasy Flight's new Star Wars roleplaying game. Hasbro's attempts to launch a D&D movie to help boost the franchise ran afoul of legal action from the creators of the previous D&D live-action films, with a hearing to be held later this month.
If the new edition of D&D fails (and early responses by beta players have been mixed), it is possible that WotC will shelve the pen-and-paper RPG altogether and focus on developing the franchise in other media.