Bitcoin is a decentralized currency It is very difficult to say whether such coins like Bitcoin will be discovery in the future. But in my opinion such coins will not be another discovery.
What is yours opinions?
Not sure I understand what you mean. Are wondering that they will create other currencies with limited supply? The advantage of Bitcoin is that there is only a fixed number of coins to be mined, and no person can just decide overnight decide to print a large number of coins. There are already plenty of other alt coins that have the same characteristics. Or do you mean also a project that is going to be as widely accept and successful as Bitcoin? For that I don't think it's realistic at the moment, because bitcoin is just too dominate. The profit all the early investors made with bitcoin is not comparable to other crypto currencies, and which is why all these investors wouldn't switch quickly into another project that wants to overtake bitcoin.