Nobody can predict the future. Anybody who tells you they can is just trying to get you to give them money.

With that being said, it seems unlikely (but not impossible) to me that NFTs will be the standard means of tracking digital ownership. The only real use case that I can see for NFTs would be tracking digital art in a metaverse-esque space, but realistically that type of space would be owned and operated by corporations. Corporations prefer to control things themselves, using blockchain technologies would limit the amount of control that they have over the space's economy, so I doubt they would use NFTs.

Other than that, I couldn't really imagine any situation where I would need to use a decentralized system in order to prove that I own a copy of a digital art piece other than bragging rights, but that seems like something only the very wealthy would engage in.