Like many of you, I've signed up for NaNoWriMo 2007, and I'm already a bit fidgety about what's going to happen. And a lot of that is due to the fact that the story I'm planning, Vajra, is in some ways a successor to Summerworld.
Note that I didn't say "sequel"! I don't do sequels -- or, rather, I try not to. Vajra will not have any of the same characters or situations, so don't expect to see Gô, Tomoe, Utsumaru or Terashima (or Yoichi or any of the others). But it does have many of the same themes and concepts, just explored in an entirely different way.
What I'll probably be doing is creating a blog for that book later, and I'll have links back to it from here once it's up and running. (Eventually each of these separate book blogs will be consolidated into something more central, but for now I'm doing everything one book at a time.)
If you've signed up for NaNo as well, drop a line, and we can compare notes!