The
GSL also refers to product lines. For example, I might take a core character class from one of our Feudal Lords products and not make it a character class, but something else in 4th Edition. However, if I market it as a Feudal Lords product using the
GSL, I must terminate all previous Feudal Lords products.
You could make a journal, diary, etc. with the
GSL in mind, but once the
GSL is revoked you must destroy (yes, destroy - no grace period) those materials and it is at your cost and the cost of your distributors. You then couldn't use the
GSL anymore to sell your products or sell your future products with the 3rd Ed. d20 logo (which is dead or soon to be) or make journals, diaries, etc. using the previous
OGL.
Even though parts of the
GSL is destroyed once
WotC revokes it, the parts that prevent you to going back to
OGL prevents this).
So, for my previous example - I make a 4th Ed. Feudal Lords product line, terminate my previous 3rd edition Feudal Lords product line, and 5th Edition comes out. I don't like the 5th Edition rules, but I can no longer make 4th Ed. rules since
WotC pulled the
GSL, and I cannot make another Feudal Lords product line for 3rd Ed. So, I can either go forth with 5th Edition or make my own rules system for my Feudal Lords product line.
Nothing like a little plug
. Anyway, I am not a lawyer, and this is how I interpret the
GSL after reading it a couple of times. I still have to go through it with a fine tooth comb.