The probability of this event is high, but is not 100%. How do you think the bitcoin will give up its positions or not and how will everything happen?[/i]
Apple and oranges.
Bitcoin is trully revolutionary, if you compare bitcoin to ripple, sorry but you have no idea about technology behind this inventions.
Bitcoin is most stable/safe currency out there. Its slow because of that, but security is more important than anything else here. Don't worry about bitcoin, its best store of value in the world.
Ethereum is just experiment, and ripple is centralised garbage.