Here's a brief list of what's changing. For reasons behind the changes, check out the last six months of letter columns and posts to this site, essentially.
1. Four Mini-Games per year. This allows us the opportunity to spend more pages supporting previously published Mini-Games as well as other stuff like Star Wars, the RPGA, d20 Modern, etc.
2. Poly now in back. The "flipped" format caused more trouble than it was worth. Trust me on this one. The Poly cover will still appear in the interior of the magazine, and all pages will face the right side up.
3. I'm killing the subscriber section. You heard it here first. Many, many, many readers complained that this section unfairly harmed retailers, and the idea seemed to annoy more people than it pleased. Again, this simplifies things. Determining what's in this month's Dungeon shouldn't be a math problem.
4. More than 2 adventures per issue. This won't always be possible on Mini-Game months or in months with an Adventure Path adventure (which happen to be long). We'll never do another issue with just one adventure.
5. The Dungeon/Poly split will no longer be absolute, and instead will depend upon the material we've got on hand. With the rare exception of a Mini-Game that simply won't work in less than 40 pages, the Dungeon side will always be larger than the Poly side. That's not to say the Poly side is going to shrink to oblivion--we're just going to keep it smaller than the other side of the magazine.
6. New Associate Editor. We've hired James Jacobs (Flood Season) as our new associate editor to help with submissions and rules. The two of us (with Art Director Sean Glenn) are now in charge of the whole shebang, and all of us are working on all the magazine, instead of splitting editorial duties in half.
7. I'm strongly considering making the format of David Noonan's "Zenith Trajectory" (102) the official format for all Dungeon adventures. It's certainly going to be the standard for the Adventure Path.
There will probably be others, but those are the most important ones off the top of my head.
--Erik