Improvements

Status: Incomplete
Description: The ability to repromote a story to the front page. The ability to block users by username. Some type of time limit on submitting stories...like 1 every minute. Give more weight to diggers with a higher member overall ranking. Some type of karma system for comments. Some type of word verification for comments.
Resources: Kevin Rose comment.

Design Changer

Status: Incomplete
Description: When Digg 2.0 was released, Kevin Rose commented that they would release a feature allowing users to switch back to the Digg 1.0 design.
Resources: None

Expanded Catagories

Status: Completed
Description: On numerous occasions Kevin Rose and other Digg employees have said that they will expand their catagories to more than just technology.
Resources: None

API

Status: Completed
Description: An API (Application Programming Interface) for Digg.com allowing developers to include digg features on their website.
Resources: None

Spam and Fraud Tools

Status: Completed
Description: Kevin Rose - "we are going to be releasing some features that give administration of this fraud/spam to you, the users. In the near future, you will have the ability to join together and ban inappropriate content site wide (of course we have also come up with some systems to prevent this power from being abused). Still, the idea is to harness the same power that makes Digg so fast and effective to help eliminate fraud equally as fast and effectively."
Resources: Digg the Blog

Small Updates

Status: Completed
Description: Spy: Stories now start scrolling right away (no initial delay). We have also slowed down the refresh rate slightly.
Report stories as 'inaccurate': Digg now allows logged in users to bury stories as 'inaccurate'. Once enough people bury the story, it is removed from the queue.
Profanity Filter
Resources: Digg The Blog

Digg 3.0

Status: Completed
Description: At this point there is almost nothing known about Digg 3.0, but it is very likely that the API, Expanded Catagories, Improvements, and Spam and Fraud Tools will be included in the release. It will also feature a new design.
Resources: Kevin Rose mentions Daniel Burka of Silverorange is working on Digg 3.0 in Diggnation Episode 33.