Okay, so after a bit of thought, I like the idea behind the Saga's as an extra free reward for people's questing achievements, or for some as an end in itself to farm up a load of skill tomes. You've added something extra and you've not taken anything away.
So lets make it look like a finished system and not just an add-on or an afterthought.
Add a tab to the Adventure Compendium tab that lists the Saga's and lets us see how many points we've got in that saga, and which quests we have done on which difficulties.
While you're at it, add a tab to let us see Raid and Storyarc completions, and on that same window, let us see raid timers.
You've gone and expended development resource redoing a bucket load of icons, so obviously you have spare capacity for improving the UI experience.
So how about applying some of that spare resource to adding to the UI?
And when you're done with that, lets start on designing a new Character Sheet that gives us all of the detail that we now need. If for some reason resources are tight, then ignore all of the above and just do the new Character Sheet.