As far as I can see there have been no updates on Saadiyat Grove since 2019. There are a few pictures online of this scale model and different variations of what the development would include but it looks like it was meant to tie together the museums district and as those have been so on and off over the past few years I think it's fallen by the wayside.
It may return, or be redone in another format, once the museums etc are further along but it looks like this is the most "realistic" press release I can find for it and it's from November 2019 so not much time to get things moving before the pandemic closure hit.
Article: https://www.constructionweekonline.com/projects-tenders/260881-pictures-sheikh-khalid-unveils-aldars-22bn-saadiyat-grove
For those not familiar with the project here are some images of the model and headlines from the project...
Perhaps someone local can see if the Saadiyat Grove Experience Centre is still there?
As part of the launch, Sheikh Khalid visited the Saadiyat Grove experience centre at Mamsha Al Saadiyat and reviewed the designs and the master plan of the 24.2ha developmentOnce developed, Saadiyat Grove will feature 6ha of retail, entertainment, and leisure spaces comprising 3,706 residential units, 170 of which will be branded, in addition to hotels, as well as co-working spaces for new enterprises and startups.Phase 1 of Saadiyat Grove will include 606 residential and around 200 retail units, in addition to gyms, pools, kids play areas, community gardens, and a running track that will connect the whole project. Set to be developed in phases, Saadiyat Grove’s Phase 1 will begin handover in 2022.