For the near future, I do not suspect that Dogecoin will have anywhere near the same value and usage as Bitcoin. However, as Bitcoin gets closer to its maximum supply (the number of Bitcoins to be in circulation is limited), Dogecoin may surpass Bitcoin in digital coin trade. There do exist only a limited number of Dogecoins, but there exists no coin cap at the moment (like the Bitcoin cap). This same lack of limitations could keep Dogecoin from rising in its value. To be fair, other variables could manifest to increase the worth of the altcoin. We have seen Dogecoin's value fluctuate, so an increase still seems possible. Dogecoin, and all of cryptocurrency and blockchain for that matter, is an incredibly new phenomenon. We need to watch and speculate over the whole occurrence much more before any forecasts can be made with any accuracy. And, even that could be many many many years away from us.