|I don't think those three will agree on anything, more likely, there will be three more competing standards.|
Yes, the scenario I presented would (I think) easily replace Bitcoin. But I'm not sure the big name brand consumer focused companies could get together to pull it off without controlling the eventual new crypto.
An external group could do it, though. And get Apple, Android/Google, MSFT to bundle the app/coin with their PC/cell phone. Why not? It couldn't be that hard. And it would spur device sales.
One of the problems (I think) with Bitcoin now is that 75% of it is mined, and already owned by someone else, usually not the historically uber rich. Why would the current uber rich want to let those Bitcoin early adopters become phenomenally wealthy for ..... doing not that much (ie, buy Bitcoin when it was 34 cents a coin)?
It seems like the Blockchain concept and technology is developed enough now that a reasonable software company could make a fast, efficient, secure NEW crypto with a user friendly interface, and release it to the public without premining. That would be the best outcome, but then, what's the incentive to do that without the profit motive?