I do not believe that the future forks of Bitcoin can generate any currency of value.
Do you know how much the value of bitcoin cash now? It has real value and many are supporting it then but those people are the ones that are not satisfied with bitcoin especially the miners that are looking for lesser difficulty.
They are just a tool to further strengthen the price of Bitcoin. However it ends up disrupting the market.
It's disrupting the market by letting investors and miners choose what coin they really want to but the majority are staying to bitcoin legacy. It's helping the price to pump since to have these fork coins you must have some bitcoin.