Spot on! That is also how I look at things. Blockchain as a technology will be here to stay and many of the systems and procedures will include blockchain technology in one way or the other.

The time has started for so many of the Altcoins to proof themselves; Many will die; Other will gain (a lot). Indeed, as you say, a coin/token need to fill in a specific tasks/demand and the coin technology shall be tailored to that purpose whether it be fast transaction, or holding lot of content, or whatever. I actually think those coins and tokens that build wanted services on top of their coin will have a better chance to survive than those coins that 'just' deliver a blockchain + coin. But, only time will tell :)