Since it's not really about Prydaen's anymore...
I'm definitely a fan of the fact that our Guild's "goal" may conclude/shift/adjust/etc as time goes on. It makes development and roleplay within the guild more accessible to me. The fact that Book might eventually go "we have concluded the Great Work, now we must X*!" and have the guild's ideals shift accordingly really interests me.
(*Spread it quietly among the masses|Take down the Temple's and its false teachings|Kill that demon we inadvertently awoke)
"We're not "out to get you," we're here to enhance your playing experience with extreme prejudice.," DR-ARMIFER