As this news may have reached a number of us, Google is phasing away third party cookies. Despite any speculation around potential replacements of these cookies, Google won’t provide a way to maintain the same kind of data tracking after cookies go away.
As explained by Google:
“We continue to get questions about whether Google will join others in the ad tech industry who plan to replace third-party cookies with alternative user-level identifiers. Today, we’re making explicit that once third-party cookies are phased out, we will not build alternate identifiers to track individuals as they browse across the web, nor will we use them in our products.”