You are now able to use the Skip Campaign option if you have yet to complete chapter 10. This feature has been contributed by jelq / jaredstrong89 on GitHub - many thanks to them! Please note that this initial implementation does not include the XP / hammer / material reward that you would normally get for reaching chapter 10 without skipping. This will be implemented at a later date, and all players who have progressed past the start of chapter 10, be that by campaign skip or otherwise, will be rewarded these materials retroactively at that time.

It is now possible to use special summoning tickets, which are earned from the Royal Regimen. You may have some of these already but they were not usable until now. They guarantee one 5★ launch-era unit.

You can now spark for units on the summon banners. You should have received any sigils corresponding to historical summons on the new banners (since mid-March). The first two unit and dragon banners have every permanent and gala unit and dragon available for sparking. The remaining limited banners have their limited units available to spark.

As you hopefully realized, the message below was an April Fool's joke. Elisanne has been re-added to the game; it was purely a visual trick so there should not be any data loss.