Well, what has been said by people that peer into the future is that bitcoin basically becomes the instrument of international settlements and corporations paying each other.

They already pay huge amounts to transfer money.
On top of that, they pay huge amounts to swap currencies.
Compared to that, $10,000 transactions is cheap, Cheap, CHEAP.

We, the little people, will use other things.
Probably BCash, Litecoin and Digibyte.

Plus there will be interactivity layers that will basically make it so you can spend any token and the receiver can get any tokens they want.

There will be a layer, like lightning network that will congregate and pool lots of little transactions and write them to the parent chain once a day or once a week.