Value cannot be measured exponentially accurately. The value of an altcoin will be calculated and estimated according to altcoin's news and development plans. Dogecoin is undoubtedly a great altcoin and it can increase to $ 0.005 in 2019. $ 1 is an unrealistic number compared to the current economy.
Although Dogecoin began as a joke, it has been around for quite a long time on the market and has a multimillion army of supporters. I am sure that this coin has a future!