Here's more info on this from the WotC website:
"We have received a tremendous amount of feedback from fans regarding the D&D Miniatures line, and have made some exciting changes for 2009. Here’s what’s coming to a shelf near you!
Dungeons & Dragons Miniatures -- Player’s Handbook Heroes
More than anything else, D&D players have been asking us for more PC (player character) minis. The D&D Heroes line features high-quality miniatures representing iconic player character races and classes described in the Player’s Handbook and Player’s Handbook 2 core rulebooks. Now players will be able to find the miniature that best represents their PC, and Dungeon Masters can use these figures to represent non-player characters in their adventures.
Launching in Spring 2009, the first D&D Heroes series features six different packs (18 figures total):
* Martial Heroes 1
* Martial Heroes 2
* Arcane Heroes 1
* Arcane Heroes 2
* Divine Heroes 1
* Primal Heroes 1
Each package contains 3 PC minis: 2 males and 1 female, and 3 unique power cards featuring brand new class powers. All three of the figures in the package will be visible so you’ll know exactly which pack to pick for your game.
The D&D Heroes will be refreshed regularly in order to continue to deliver new PC options to players. There are two series scheduled for 2009 and three scheduled for 2010. MSRP $10.99.
Dungeons & Dragons Miniatures -- Monster Manual
Also new to the 2009 lineup are Monster Manual themed releases. These sets are designed to be what every Dungeon Master (or D&D enthusiast) needs to create riveting adventures and exciting encounters at all levels of play.
Releasing in Spring 2009, the first D&D Monsters set is called Monster Manual: Dangerous Delves. This will be a 40-miniature set containing both medium and large sized figures. Each semi-randomized “booster” box contains 5 minis: 1 visible figure, 1 rare figure, 1 uncommon figure and 2 common figures, as well as full-color D&D Dungeon Delve stat cards for each miniature. MSRP $14.99.
Upon the release of D&D Monsters and D&D Heroes, we will no longer package the D&D Miniatures line in its current configuration (fully randomized booster packs and huge packs). This means that November’s set -- D&D Miniatures: Demonweb -- will be the final release sold in fully randomized booster packs. "