Bitcoin would be developing further more with blockchain technology. It's very useful business for private persons and even legal entities. Blockchain implies decentralized storage of all the transactions. All the info could be saved not at one huge server, but on the computer that is involved into blockchain business. My ambition is to start a blockchain business.
The participants (I mean seller and buyer) could perform any transactions independently without wasting time. It would work at any time, including days off or late night or early morning.
It's profitable to start a blockchain business in our days! Of course, firstly we should analyze this field. One could read how to start a blockchain business here: http://merehead.com/blog/start-blockchain-business/. It would really inspire for some steps. But, firstly do these steps, it's better learn more and clarify all the details. No doubt blockchain business is very perspective. One its advantage is that it helps avoid rampers because the access to the info has only you and your customer.

Yes, there is no crypto coins with out blockchain technology, but there is a blockchain technology without crypto coins.

I think it's impossible. Bitcoin is too popular worldwide and its popularity is growing. Its price can't down to zero.