Question is, are these new quest supposed to be itemized or the intent IS to only have monetary reward?
But I do understand your concern, what if they actually change the rewards and once you've done them you cannot anymore. I think that it has been the case of changes in quest lines and then those players who had done it were able to repeat it (or got the reward, not sure about that). It is also true that there are different areas where players start that wil have quest lines that others will never see. On the other hand if you make the quests now and then they are changed say when you are lvl 30, what it is the problem? 12-20 lvl quest rewards will probably not matter at higher lvl anymore.
Your point does illustrate the risk we are all taking by undertaking the task of playing a game in the very early stages. Even before i got it I new that things are not 100%, actually in these kinds of games they are never at 100%. So it's a matter of life and we have to be aware and accept it. Though we can always give a heads up and constructive criticism

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Arkrnum : Raki Sorcerer / Minerologist
Sideroth : Kurashasa Necromancer
Siul : Vulmane Ranger
Shadows of the Dragon Guild ~ Gelenia Server
www.shadowsofthedragon.com