I have already started planning on my own game (actually I have been planning for quite a while)
Some of the things I would like to include are some seriously detailed statistics and things for the players. (this is an online game) The players could be customised visually from head to toe, and there would be many many stats, such as physical attributes, mental attributes, talents, skills, knowledge, etc.
The game wouldn't be at all like anything I have ever seen at least.. I like to pay attention to detail when it's something that I really want to make.. things like breathing animations, and changes in the breathing animation when they have been running for some time (breathing gets faster) and when they are in cold climates you can see their breath as they breathe.
I would probably have to use 3d models for it but they would look 2d, sort of like that game that starts with an R, but the game would be a 3/4th front view, not isometric.. plus it would most likely have a 2d look but 3d attributes to it.
Of course I still need to learn so much about 3d stuff and programming before I could get this underway..