Our official roadmap is fairly flexible. It outlines what our long-term goals are for the program. Note that it's subject to change (and frequently will). If you don't see something on the roadmap that you think should be added, the best way to get it on there is to submit a post to the Suggestions & Ideas forum, and get others to comment in support. We take suggestions from the community very seriously, and try to accomodate them as long as they don't conflict with our overall vision of simplicity and ease of use.
Completed
Token Settings/Assignments Overhaul
Player Zone
Google+ Hangouts Integration
Turn Tracker Overhaul
Drawing Tools Overhaul
Pan Tool
Campaign Extending/Copying/Management
Campaign Sharing/Marketplace (Ongoing)
Complete Deck system
Better Jukebox, Journal, Pages Organization/Archiving
Measurement Tool Overhaul
Looking for Group tool
3D Dice
Dice Overhaul (better randomization, dice GUI)
More documentation, screencasts, help articles
Polygon Drawing Tool
Character Attributes and Abilities
Character/Token Linking
(For a complete list of all completed features and bug fixes, see the Changelog )
On the Dev Server
Dynamic Lights and Shadows
Mobile (tablet) support
Soon
API/Extensions System
Continue implementing major dice mechanics
International Language Translations
Modules on Marketplace
Later On
"Special effects" that can be triggered by the GM
More customizable UI (pop-out windows, etc.)