RE: Bitcoin will likely take 1 of 3 paths
I'm thinking of BTC as early day web with text, images, flash videos and hyperlink. My view of Bitcoin is that it's a prototype or a Minimum Viable Product. It would end up more like one of those old FPS multiplayer games which pioneered a whole genre that's still being played by a tiny community of people. BTC is a stepping stone. Most crypto coins in the Top 100 are far superior to Bitcoin. Eventually BTC will loose the mojo of its first mover advantage and eventually be phased out in favor of faster, cheaper, private coins with tons of extra features like Dash, NEM, PIVX or some other yet to be created coin.
Bitcoin is a technology; a software. It's like Windows XP or dial-up internet. Technology always get old and get replaced. Period. BTC will end up like those old multiplayer games. We'd see BTC running few nodes and doing few Mega hashes being presented to the world like a part of a digital museum. I think this would happen in 10 years +/- 3 years.