I would say almost every coin has future, as long as they have supply, demand, and speculation. Until now dogecoin with low price is just like display for me, not good for investment. Even we have a huge money to get it, dogecoin price is lower than another altcoin. But if your method says it will come up I think you should follow it and see what happen. If I have dogecoin I'll exchange that with another coin like eth or xmr, for me they have better prospect. That's my dogecoin opinion, hope you understand. Thank you very much