I have five categories as a suggestion. Should they...
be sorted out because it is no longer current or relevant?
remain unchanged because it is published with the right statements in the right place?
be updated because it is in the right place, but needs improvement?
adopted unchanged, but republished because it is viber data still current but can be used very well elsewhere?
be edited for reuse and republication because it is valuable for future communication?
You can now take all the content from points 4 and 5 and republish it, process it, enrich it, and put it into new contexts. This will probably automatically give rise to new ideas, suggestions, and other topics.
Finding topics: A luxury problem from now on?
So, once you have found this treasure, all you need to think about is how to bring it into the world in a way that increases value for everyone involved. You might even suddenly have more ideas than you can handle. But that's a luxury problem compared to before, isn't it?