If anything, my bet is the future of identity is more centralized. Decentralized solutions, as I've read about them in their current form, require a significant amount of technical knowledge to understand. That is, to understand both what they are and, more importantly, their benefits ("why does this specific solution matter to me?"). Past that, the user experience is extremely poor in comparison to clicking "log in…
When you visit a website that works with it, to login, you just grant the webpage access to one of your profiles. (I just use one profile for everything, but you may wish to keep some things separate). Then any activity you do can be associated with that profile. No passwords or keys or even email addresses to remember.