You know how long the second season has been out? There are re-runs on adult swim. (wed night?)
Yes this might have spoilers so don't keep reading if you don't want to know:
Alright, I think he might have died, but also he could have escaped to the vastness of the "net". Just like the Major does in the first GITS movie (which you learn if you watched the second GITS movie).
I also don't get why they showed the whole series on Adult Swim yet all the DVD's arn't even out yet. I want to get another look at the series. Oh well, guess there's always bittorrent