It will introduce new content in April and May.
When Bungie decided to delay Destiny 2: The Final Shape out of February 2024 and instead push it until June, many assumed that we were in store for a lengthy and drawn out final season, akin to what happened in the lead up to Destiny 2: The Witch Queen in 2022 when that arrived around three months later than expected.
However, as Bungie seemingly knew well in advance that The Final Shape would not be ready in time for the original release date, the developer promised that the extra waiting time would be filled to some extent with additional bits of new content, content that we’re beginning to learn more about.