Lots of players (myself included) tend to not run them. Here's an idea to utilize them. I hope the community has more ideas for this.
Daily Challenge would consist of *insert area or reward* that would give rewards for running these challenges with some fun rewards, like the way the new daily dice are configured.
Up the xp for the dailies.
Make it interactive, so it's not just a static system. Yes someone at SSG would have to come up with the weekly theme, much like Cordovan does for several community offerings.
A new mini crafted item. Similar to the shield or book for abbott etc.... You'd have to finish each weekly or daily challenges to get the next item. When the sigil/shield/book *insert item* is completed, get the reward, or make cumulative.......
Lots of ideas for rewards.
tbd