I think eventually useless cryptocurrencies the market is filled with today will be gone, but it wouldnt surprise me if one day there were thousands of purposed blockchains that show useful information. Imagine every service company you use having a blockchain showing your subscription and payment info.
I definitely except a similar situation and we have seen a few companies actually do this ( wasn't IBM behind some operation where they would set up internal blockchain solutions for business clients) This more or less needs to also be something that the medical record world takes over as well with each operation and prescription being essentially a transaction to an individual and not just a piece of paper that you hope goes from doctor to doctor.