There are going to be major changes in the order and prominence of different universal SERP features
Featured snippets, Local packs, People Also Ask, Find Results On, Shopping, Ads are all likely to be redesigned or disappear completely.
Results will vary by keyword query and intent. Some SGE results will be prepopulated for certain types of queries whilst others will only feature a simple SGE ‘click-to-generate’ prompt.
There are huge risks to your existing organic positions and traffic, e.g. You could lose a Featured Snippet and be replaced with just one of many citation links.
There are also huge opportunities (especially for sites ranking outside the top results) to get referenced in generative AI search
These changes will impact how you update, create and publish content to rank well in future