Should've seen the "You'll be dead, what do you care?" coming.
I know it's difficult to speculate that far down the road (~2140) but it's worth thinking about the bigger picture. I'd have to agree with yoseph. We will probably move on to something different by then.
From the calculations due to the difficulty increasing whenever each bitcoin is mined, it will be another one hundred year or so before the last bitcoin is mined in the entire world, I don't think that even Satoshi will be around to witness the milestone, I am certain that by then the current generation would have moved on to another cryptocurrency then.
Or maybe with the commercial release of qubit processors we won't need to have warehouses of ASICs running all day and mining will be done in the palm of our hand. Maybe a bit idealistic but we are talking over 100 years in the future.
Then you run into the issues with private key security. Hopefully encryption scales proportionately to hardware advances.