I do not believe that the future forks of Bitcoin can generate any currency of value. They are just a tool to further strengthen the price of Bitcoin. However it ends up disrupting the market.
well we don't know what future will bring to this fork coins as we continue seeing bitcoin to keeps rising up who knows some big business will start looking for an alternatives, we should not forget that those fork coins comes from the original so they have similar functions and if, again just if someone play with those fork coins surely it will create impact and riders / traders will be there together with the miners.
The original is only core devs that hold the real bitcoin. these emergence of forked coins just becoming a tool to make money, lets be frank here, majority of all these forked coins ended up becoming dust coin or just 2nd tier coins, for example, BTG, and there's so many forked coins released by unpopular devs aswell that trying to modify the open source code of bitcoin.