Board Thread:News and Announcements/@comment-27613051-20180501180200/@comment-30274275-20180501234519

12. "In addition, the TIE/ln Fighter Expansion Pack contains a few entirely new cards that have never before appeared in the game's first edition. These new cards and associated punchboard are also included in the Galactic Empire Conversion Kit for the benefit of veteran players! "

So conversion kits hold all the goodies as if you bought the expansion packs for 2.0 by themselves.