Board Thread:General Discussion/@comment-29139884-20160718191836/@comment-26451193-20160904112425

Actually, that's not the case. The contents of the chest are not decided until you press "OPEN". If you got a crown chest in Arena 4 and saved it until you get to Arena 5 and opened it in Arena 5, you would get Arena 5 cards. Also, if there's a new update coming up with new cards and you save a chest for after the update, you can get the new cards.