Most of the will, at this point, is either completed or so old as to be a non-factor in modern Shadowrun. This isn't to say that it wasn't a vital thing! That single document launched entire *campaigns*, not just adventures, and continues to have echoes today.
You have several dead ends (The guy who gets 50,000Y a year as long as he remains chaste, for instance), some "We will never follow up on this, so enjoy yoru campaign:" stuff (The Russian Crown Jewels, for instance.), some main plot points (Art Dankwalther!), and some that might have had something going but never got a follow up, like the Cheyenne dig.
The one that always bugged me was "Where the rock meets the sky", just because it's a riddle of some kind and we'll never know what it was intended to be. That one might well be added to *my* will, to bother future generations.
At this stage, it's probably better to focus on new plots instead of old ones, but the occasional tidbit dropped for the older players is always welcome.