- Companion Characters: Shalelu, from The Hook Mountain Massacre, will be changed from an NPC into an optional companion character. She will be able to fill the role of an extra party member, if needed. I will include information on how to increase her level as the adventure progresses; she can reasonably be included in the party through the entirety of the module. The surviving Black Arrows (Jakardros, Vale, and Kaven) will remain NPCs. For information on what companion characters are, see the official excerpt on the Wizards website.
- Terrain: I will be making additional notations on terrain in encounters in the conversion write-ups. Some terrain features (and possibly some hazards or traps) will instead become terrain powers. For information on the role terrain powers fill, see the official excerpt on the Wizards website.
- Traps & Hazards: As mentioned above, certain traps may become terrain powers, as appropriate. Others may see slight revision to fit better with some of the trap standards included in the DMG2.
- Skill Challenges: Some skill challenges may be revised, though I have been making revisions to skill challenges as I learn more about good design. Hopefully few such revisions will be needed. Samples of the skill challenge advice offered in the DMG2 can be found in the official excerpt on the Wizards website.
- Monsters: There will only be a handful of changes to monsters I've designed. Off the top of my head, I'm considering applying the Goblin Allies monster theme to some of the non-goblin creatures found in Burnt Offerings.
On a related note, I very strongly recommend purchasing a copy of the DMG2. It is one of the strongest tools a DM - new or experienced - can have to draw upon. I guarantee that you will find something in the book that will improve your game.