I'd encourage you to add some concrete stretch goals, such as:
- DM Client (see neverwinter nights 1 and 2)
- Horses, Horse Combat
- D20/other dm tool support
- Other more exotic 'world' type features: Territory control & AI, etc.
Amazing videos guys. I'd like to +1 to this post and inquire if the team has taken a look at the feasibility of creating a DM Client and other multiplayer features (integrated voice chat, text channels, etc.) that would allow a similar experience (or a better one) than the NWN 1 & 2 multiplayer...