It seems to me that even if Bitcoin reaches total market dominance and saturation, there will always be use cases for crypto that can't / won't be integrated with it.
For example, stock tokens, tokens that pay out rewards like Steem, smart contracts, etc.
Also, is it possible that chains that can do atomic swaps could take a large portion of the Bitcoin off chain permanently? Seems like that would attract a lot of users. Who wants to wait 10 minutes or longer for a Bitcoin transaction when you can do it on EOS or something in a few seconds?
They keep saying sidechains and layer 2 solutions will cover all of the use cases of other chains. But isn't a chain that does atomic swaps effectively a sidechain?
I think we'll know for certain in five years or so.