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.
This would have be another way round if the crypto currencies are to rule. For example every company will have a coin and that coin will have a variable value according to the strength of the company. This can be taken as stocks market in the present world where every a company stocks move up or down according to the progress.
Blockchain will not be limited to currencies only. Then all the data will be stored in blockchain which is easy to access and impossible to alter for corruption.