What will be in the Blue Essence shop?

The blue essence shop will be selling everything that is listed here

https://boards.na.leagueoflegends.com/en/c/developer-corner/c7He9MWq-frequently-asked-questions-about-the-upcoming-leveling-and-rewards-changes

1,500 BE - Mystery icon box (guaranteed to be an icon you don't already own) 2,000 BE - Chromas (includes all chromas that have been available for at least six months) 2,500 BE - “Mystery Mini” Icons Box (exclusive to the special BE store) 3,950 BE - Mystery Champions (guaranteed to be a champion you don't already own) 4,900 BE - Mystery ward skin box (guaranteed to be a ward skin you don't already own) 6,000 BE - Rune ward skin (exclusive to the special BE store) 50,000 BE - "Make it Rain" emote (exclusive to the special BE store) 50,000 BE and up - Gemstones (First one costs 50,000, second costs 75,000, third costs 100,000. Limited to three per account during the special BE store sale) 150,000 BE - URFWick skin (now exclusive to the special BE store)