I have started some notes for a revision of Saga of the Splintered Realm. My notes thus far take a lot of what I've done with Sentinels and strip the game down even further. Right now, my working approach is to go with a totally modular approach to the game. Instead of a core rulebook with general classes and rules, the whole system would be predicated around the idea of there being no 'generic' anything. The monsters and creatures in the core module would be somewhat archetypal, but by no means generic.
I am thinking right now that I go with a larger size (8.5x11 pages) and each module is only 16 pages long. This allows people to play the core game with only a handful of pages of rules, and then use any module that they want. Each module would require only that module and the core module, and each module would be themed in some way. While the second and third modules would be monsters and GM guides respectively, the additional modules might be on elves, dwarves, the underworld, giants, elemental flame... pretty much anything. Each module might include 4 new playable classes, a few dozen monsters, a few dozen spells, a handful of magic items, and an adventure locale.
I am looking for something I can get wins in around my hectic life schedule, and I have the itch to work on fantasy stuff again.
I will post here as I work on design stuff, and I'd welcome your feedback on things that you didn't like from the SSR core rules.