There are a lot of potential uses for the blockchain, and we are just exploring them.
There are application in properties, in real estate, in keeping trace of works and school titles, ecc.
So, we'll see.
You are right but will we ever see someone using blockchain without involving cryptocurrency? I think for now selected few will think of doing so as it can be inconvenient to use blockchain without crypto. That being said, I am excited to hear news about blockchain being used without cryptocurrency since that is one milestone for it. Still, I prefer if those who wants to harness the blockchain tech uses cryptocurrency as well.