[Availability update | July 28th, 2020 | Microsoft Lists began roll out to Targeted Release (TR) customers in Microsoft 365, planned TR completion by end of August 2020 where we'll then begin broader...
Hi Holly_Min - we've updated all roadmap items on the Microsoft 365 public roadmap to reflect current release planning. We, too, shared more on the recent Lists GA blog, "Microsoft Lists begins general availability roll out to Microsoft 365" - with a release timing FAQ; here for summary: "The new Microsoft Lists home page and associated eight ready-made templates will begin roll out by end of July 2020, first to Targeted Release customers and then to the broader production environment – inclusive of enterprise, education, and government plans. The Lists app in Microsoft Teams will begin roll out by the end of August 2020. All are expected to be complete in production worldwide by the end of October 2020." Hope this helps, and can't wait for you to begin using them very soon.