Your projects are merely a period of what you shoot and when you are done you move on. They don't necessarily define the style you have.
As I've said, a style is a marketing tool to sell people what they are used to. But as a photographer you evolve onto something else, even if you continue to produce some work for your style groupies.
But if a photographer or any artist continues to stick to a style/rut for the sake of sales or ego he will stagnate and be unhappy because talent has to grow or it dies.
If you are a musician and all you do is play the same songs over and over instead of evolving you become a quaint novelty and artistically wither away. You may get rich but you'll be unhappy artistically.