We evaluated different ways to move forward and decided to go with a Hybrid sync. Meaning that we will keep basic attributes, and copied tables from the WorkItem in sync with the LegacyEpic. We still want to delegate reading from shared tables. You can read more about the evaluation in [this document (internal link)](https://docs.google.com/document/d/1nwlDMouptnTMnszOI75BuQbIDAaPSkUYirRsrfSCorA/edit#heading=h.izg26o2zub29) and watch an explanation how we want to achieve the hybrid sync here: https://www.youtube.com/watch?v=4rRVlI7z88E There are also two POCs: - Syncing WorkItem to Epic: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/148070 - Using WorkItems in the Epic APIs: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/147909/