We currently don't have a timeline for when these features will be released for General Availability. The best place to keep to date with timelines for this release will be either our developer changelog, or here on this forum. As you might know, the new online store design experience can be tested on Developer Preview stores, and we have recently expanded the availability of sections from product pages, to include 3 more pages- 404, password and cart.
Hope this helps Mechmillan- happy to share any advice that would be useful for testing this functionality for your client.
Shopify | Developer Community Manager
The new online store design experience was announced in June 2019:
This is taking really long. Any kind of indication about the launch date would be appreciated.
The new online store design experience was announc..
The upcoming feature was announced then later the beta, shipping a product that will impact millions of merchants takes time. Relax.
Ontop of that there's kinda big events going on in the world.
Thanks for your message- we don't have an update on the timeline as of yet, however our developer team is hard at work on creating the best experience for our merchants and partner community. As soon as there is news on this front we'll share it here as well as on the developer changelog.
Hope this helps,