I don't see open game content dead perse but just not defined or supported in the way we were accustomed under the
OGL, ie the viral nature of the
OGL. The
GSL doesn't say you can't have open content. It's clear that the
GSL SRD isn't giving us the same amount of information that the
OGL SRD did but it doesn't prevent publishers from including a "Open Content" license of their own for their new original material with their publication. However, it will be interesting to see how original IP and the
GSL play together if someone get's into a termination situation or the
GSL get's pulled or significantly changed in the future. Clark mentioned that your new stuff could be unusable in the future for at least release under the
OGL at a later date. This will be one area that I'll be watching debate on and hopefully
WOTC will weigh in with an official opinion.
Gil