Well the first two points are pretty normal for many MMORPG's can't think of many that do not have such quests or around the same amount of classes/jobs.
Many games have max level too.
The other points, well I do not know personally of any mmorpgs with the same designs, (not to say there are not, I have not played many) but they seems like interesting ideas.
They don't seem stupid the least.
Work on them and develop them to become something different from many other games.
