from what I got you are making the same towns, the same skills, the same basic game play, what exactly will be different and better? and about people simulating WoW, it is a free version of WoW which is why people play it. You are telling me that it is better? You see several different RPG's but the hits are the ones where the creator used originality and their own style, not a copy of somebody else's. This is just one simple opinion don't take my word for it. I am simply suggesting that you do not make a copy, add more skills and more variety of enemies. Make it your own map that you created, based off of somebody else's, but do not make their map as it has been done and perfected.
I probably have the wrong idea of what you are doing but from what you said you are making the exact same thing only smaller and with more teamwork?
Have you played Oblivion? Im turning a single player open world RPG into a 12 player RTS ORPG. Thats totally different.