Well if you keep the old chain and make it a succesful coin, you can do, look at the forks of Bitcoin like Bitcoin Cash. The fact, that some devs just change algo is a thing, that is completely against decentralization. For me, what they are doing is just a scam. Telling they replace these algorithms, but keeping SHA256 and Scrypt, and telling the reason is decentralization. I can imagine the reason: The devs have only SHA256 and Scrypt ASIC's... In the end, there cant be any decentralization at all, if the devs can just decide to change algorithm. What other proof does anyone need for a completey centralized currency? It is not even better as Mr. Mario Draghi telling the worl he is generating 60 Billion Euro each month.
Fact for me is, that i will not support Digibyte anymore. I will wait for a good price to sell and then sell all my digibyte. In my opinion, this currency has no future with devs like this. For the beginning i will concentrate on Verge now.