Edition Differences | Hollow Knight: Silksong?Game8
...No Special or Collector's Edition Available There have been no announcements that Hollow Knight: Silksong will be available in Special or Collector's Edition. On its launch date, only the base game can be purchased, with no additional content included. Note that the original game Hollow Knight received free expansions after its release....
https://game8.co/games/Hollow-Knight-Silksong/archives/546017
Will there be a physical edition release of Hollow Knight Silksong?
...While Hollow Knight Silksong makes its long-awaited premiere on September 4, 2025, the physical edition will not be released until early 2026....
https://www.sportskeeda.com/esports/will-physical-edition-release-hollow-knight-silksong