"Soon" would be in the next 1-3 years or so.
One of the biggest dangers for BTC is something more useful coming along and investors switching - a process which could happen extremely fast, once started.
So to all the tech savy people in here - what advantages could other cryptocurrencies bring that will give them a crucial edge over BTC, and how fast could something like that come along?
I know that we can not closed the possibility that might be come if bitcoin is being replaced by something better. But, right now i think it will be hard to another coin beat the domination of bitcoin.