THe price is set after the Pre-sale because it is been projected the initial price. It is $1.76 per coin. After that it is all depends on the market condition. However, 8.40 is within 2 years. It is a conservative estimate.
Before you conclude, you read and investigate on this coin. if you have any evidence it is a scam, please let me know also. But I read everything it is totally legit for my understanding.