LostSoul
Adventurer
I think they could release a 4E "Dungeoneer's Handbook" that was full of advice for running an exploration-focused game. In it you'd have:
-Wandering monster tables, as well as rules on when and how to use them
-Random treasure tables based on monster/dungeon level
-Traps & Tricks! (especially tricks that permanently alter a character)
-Changes to the XP system (to focus on exploration)
-NPC morale tables
-NPC reaction tables
-Random dungeon generator
-How to use skill checks (instead of "Perception DC 20", "If a character searches the cupboard, they may find the hidden drawer (DC 20)")
-Most importantly, DM advice and player advice on how to play the game with a focus on exploration
They could follow that up with a 4E "Hex-Crawler's Handbook" for wilderness adventures.
-Wandering monster tables, as well as rules on when and how to use them
-Random treasure tables based on monster/dungeon level
-Traps & Tricks! (especially tricks that permanently alter a character)
-Changes to the XP system (to focus on exploration)
-NPC morale tables
-NPC reaction tables
-Random dungeon generator
-How to use skill checks (instead of "Perception DC 20", "If a character searches the cupboard, they may find the hidden drawer (DC 20)")
-Most importantly, DM advice and player advice on how to play the game with a focus on exploration
They could follow that up with a 4E "Hex-Crawler's Handbook" for wilderness adventures.