I honestly didn't know what this was prior to seeing NftPro pop up as being so active on DropCatch yesterday.
I did some research into it.
From what I gather, NFTs are like Bitcoin in the essence that they only have value because people believe they do. As such, I don't think NFTs will ever go away, much like I know that Bitcoin won't. They will definitely fade and come back as time goes on, much like Pokemon cards, etc., but they are here to stay.