Do you mean separation of Bitcoin and Crypto, or Bitcoin and Altcoins?

I could imagine both.

You know, I see bitcoin as if it was your lifelong wife. (Dont stop reading, it looks ridiculous but give me a chance to explain).

You meet the girl. She is AWESOME, the best, the future, you will die for her.(getting to know BTC)
You marry her, life is getting even better, fresh married life..great! (Your first profits)
The marriage stars getting dull, boring, you start looking at other girls. (You realize that BTC is not so great after all, so many altcoins, so much better, millions tx/s...hmm...maybe...)
When you have a moment of clarity and overcome the bad times in the marriage....you realize the value of that woman and of that relationship, and that there is nothing that compares to it, no matter how shiny they seem.

I dont know why, but I have a feeling that bitcoin is going to be massive. Maybe not as a currency, but eventually as many other things.

People talk about being the digital Gold. I agree. But I also agree that it can be the digital EVERYTHING of our world. I´m not very technical on blockchain, but if you can have some sidechains, attach other chains, forks, etc...bitcoin could host everything.

I imagine some chain that has a utility, and from time to time it inserts its state in the bitcoin chain. You dont overload the mainchain, but you "register" some state from time to time. Example: IDs. You have a chain recording IDs for people, a chain by itself secure, but not as Bitcoin. You could every hour/day/week keep updating your state to BTC. If something happened in your chain you could do a reliable fork from the BTC transaction.

I dont know, maybe Im getting ahead of myself.

The question remains​, will we use crypto as currency? (I strongly believe and hope so). If yes, which one, how, how many...etc.